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         Iowa Geography:     more books (100)
  1. Topographic slope in selected loess-mantled second order basins in Illinois: A multivariate analysis (Discussion paper - Dept. of Geography, University of Iowa) by Harold McConnell, 1966
  2. Quadrat methods in map analysis (Discussion paper - Dept. of Geography, University of Iowa) by Harold McConnell, 1966
  3. Iowa, (Tarr and McMurry geographies. Supplementary volume) by Wilbur H Bender, 1908
  4. A joint-space analysis of preferences and their underlying traits (Discussion paper - Dept. of Geography, University of Iowa) by Stanley R Lieber, 1971
  5. Growth of the railway network of Maine: A multivariate approach (Discussion paper - Dept. of Geography, University of Iowa) by William Robert Dean Black, 1967
  6. Development of decision-aids for reorganizing settlement systems in sparsely populated regions, Australia (Discussion paper / Dept. of Geography, University of Iowa) by John Harvey Holmes, 1986
  7. An inquiry into the spatial basis of electoral geography (Discussion paper - Dept. of Geography, University of Iowa) by David R Reynolds, 1969
  8. A sketch of the physical geography of Iowa by Richard Ellsworth Call, 1891
  9. Diffusion research in geography: A perspective (Discussion paper - Dept. of Geography, University of Iowa) by Lawrence A Brown, 1968
  10. Rural distribution systems in newly industrializing societies: A survey of its economics and geography (University of Iowa. Dept. of Geography. Discussion paper series) by Avijit Ghosh, 1977
  11. Iowa "jography": "geography fun!" by Carole Marsh, 1993
  12. The geography of Iowa by Emmett James Cable, 1924
  13. Urban housing unit distributions: A random growth model (Discussion paper - Dept. of Geography, University of Iowa) by Lawrence M Ostresh, 1971
  14. Distance elasticity of migration: An exploratory study (Discussion paper - Dept. of Geography, University of Iowa) by Curtis C Roseman, 1968

81. Reg Golledge
Education PhD, University of iowa, geography; MA, University of New England,Australia, geography; BA, University of New England, Australia, geography.
http://www.geog.ucsb.edu/people/faculty_members/golledge_reginald.htm
Reg Golledge Mailing Address:
Geography Department
University of California, Santa Barbara
Santa Barbara, CA 93106-4060 Office: Ellison 3616-A
Telephone: (805) 893-2731
FAX: (805) 893-3146 Email: golledge@geog.ucsb.edu Websites: RUSCC Haptic Soundscapes at UCSB , and Haptic Soundscapes at Florida State University (collaborative partner). Education:
PhD, University of Iowa, Geography;
MA, University of New England, Australia, Geography;
BA, University of New England, Australia, Geography. Research Interests: Cognitive behavioral geography, transportation modeling, and geography and disability. Courses Taught:
105, Introduction to Spatial Decision Making and Behavior;
153A, Behavioral Geography; 153C, Environmental Perception and Cognition; 153E, The Geography of Everyday Life; 154, Geography of Australia and New Zealand; 225, Urban Problems; 229, Environmental perception and Cognition; 230, Behavioral Geography

82. UHCL SoE Faculty- Dr.Douglas Jones
Educational Background, BS (Political Science) — Texas A M University MA (PoliticalScience) — Texas A M University MA (geography) — University of iowa.
http://www.cl.uh.edu/soe/faculty/djones.htm
Douglas Jones
Instructor
Geography
University of Houston - Clear Lake
Suite: B-1119
Phone: (281) 283-3520 Fax: (281) 283-3630
E-mail: jonesd@cl.uh.edu
UH-Clear Lake
Box 191
2700 Bay Area Blvd.
Houston, Texas 77058 Educational
Background
Areas of Expertise Cultural and Political Geography American Government Summary of Professional Experience Teaching experience at institutions of higher education in Iowa and Nebraska Current Research Projects and Grants Geographic dimensions of language (English-only) policy development in Iowa Teaching Areas Regional and thematic courses in human geography Publications and Presentations SEVERAL PUBLICATIONS INCLUDING: Maier, Joan N. and Douglas Deane Jones. 1999. "Enhancing Geographic Education: Challenges and Benefits of Collaboration with Outside Agencies." Journal of Geography Jones, Douglas Deane. 1998. "Teaching Electoral Geography." In Teaching Political Geography , Fiona Davidson, Jonathan Leib, Fred M. Shelley and Gerald R. Webster eds., pp. 69-74. Indiana, PA: National Council for Geographic Education.

83. Iowa - Wikipedia
geography. iowa is bordered by Minnesota on the north, Nebraska on thewest, Missouri on the south, and Wisconsin and Illinois on the east.
http://www.wikipedia.org/wiki/Iowa
Main Page Recent changes Edit this page Older versions Special pages Set my user preferences My watchlist Recently updated pages Upload image files Image list Registered users Site statistics Random article Orphaned articles Orphaned images Popular articles Most wanted articles Short articles Long articles Newly created articles Interlanguage links All pages by title Blocked IP addresses Maintenance page External book sources Printable version Talk
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Other languages: Polski
Iowa
From Wikipedia, the free encyclopedia. Iowa (In Detail) (Full size) State nickname : "The Hawkeye State"
(In Detail)
Capital Des Moines Area
- Total
- % water Ranked 26th
km^2

Population

- Total (
Density
Ranked 30th
20/km^2 Admittance into Union - Order - Date December 28 Time zone Central: UTC Latitude Longitude Width Length Elevation -Highest -Mean -Lowest 320 km 500 km 509 meters 335 meters 146 meters Iowa is the 29th state of the United States , having joined the union on December 28 . The U.S. Post Office abbreviation for the state is IA . The official (long) name of the state: "State of Iowa" USS Iowa was named in honor of this state.

84. Www.sba.gov/ia/cedar/about.txt
geography and Demographics The Cedar Rapids District comprises the eastern thirdof the State of iowa and is home to approximately 1.1 million (40%) of iowa's
http://www.sba.gov/ia/cedar/about.txt
12-3-2002ABOUT THE CEDAR RAPIDS DISTRICT Text Version Our Mission Statement The U.S. Small Business Administration (SBA) is an independent federal agency established by Congress to assist, counsel, support and protect the interest of small business concerns and to assist them in their start-up and growth. We, at the Cedar Rapids District Office, are committed to excellence and working together with our resource partners to benefit small business in eastern Iowa. Geography and Demographics The Cedar Rapids District comprises the eastern third of the State of Iowa and is home to approximately 1.1 million (40%) of Iowa's 2.8 million residents and contains the following 29 of Iowa's 99 counties: Allamakee, Benton, Blackhawk, Bremer, Buchanan, Cedar, Chickasaw, Clayton, Clinton, Delaware, Des Moines, Dubuque, Fayette, Henry, Howard, Iowa, Jackson, Jefferson, Johnson, Jones, Keokuk, Lee, Linn, Louisa, Muscatine, Scott, Van Buren, Washington and Winneshiek. SBA Districts in Iowa Cedar Rapids (Population 110,000), is Iowa's second largest city and is the site of the local SBA district office. Iowa is divided north from south by the I-80 corridor which runs east to west through the center of the state. Historic data shows the majority of the state's population and economic growth occurs in counties on or near the I-80 corridor. Iowa's population has been relatively stable for the past 30 years, hovering around its current 2.8 million level. The 1990s saw modest economic recovery and low rates of unemployment (3.5%). However, the population is not expected to increase significantly, growing to approximately 3.0 million by 2010. Therefore, Iowa will rely primarily on its existing population for future business and economic growth. Shortages of qualified workers have pressured employers to increase wages in recent years. Nonetheless, Iowa wage rates remain competitive across the nation. Iowa has a reputation as an excellent state for doing business. Iowa enjoys relatively high rates of completion of formal education. Approximately 80% of Iowa's residents over 25 have completed high school. In the district, Clayton, Howard, Jackson, Muscatine and Van Buren counties have high school graduation rates of 75% or less. Only Johnson county has a high school graduation rate of more than 90%. Iowa's high school dropout rate is about 2½%. Approximately 18% of Iowa's residents have completed four or more years of college. Allamakee, Clayton, Howard, and Louisa counties have college completion rates of less than 10%. Jefferson, Johnson, Linn, and Scott counties have college completion rates of over 20%. Cedar River Waterfront View of downtown Cedar Rapids, Iowa. This photo is linked to a bird's eye view photo of the city Location and Ambiance The Cedar Rapids District Office is located in downtown Cedar Rapids, on the second floor in the remodeled historic Lattner Building, 215 Fourth Avenue SE. Street Map and Directions to the Cedar Rapids Office Lattner Building from corner of Fourth Avenue SE and Third Street SE The office has 5,000 square feet of floor space. The front of the office is approximately 1,000 square feet total and including a 400 square foot reception area, the district director's office, the administrative officer's office, the information resources officer's work area, the SCORE office, computer room, and a storage closet. The approximately 400 square foot rear part of the office contains the office of the district counsel, the legal technician's work area, and a lunch room. The approximately 3,600 square foot main office area is composed of 13 divided workstations, a conference room, a copy room, a file room, and a storage room for business development materials and equipment. The interior is pleasing to the eye and is decorated with pictures and live plants. The building is easily accessed by auto, bus or on foot. Metered street parking is available as well as metered parking stalls in nearby parking garages. The building is located next to the city bus center. A wheel chair ramp is provided inside the building entrance. A spacious elevator is handicapped accessible. Personnel and Operations To Reach Us, email or call us: The district has 12 full time professionals. Management consists of three individuals: James N. Thomson "james.thomson@sba.gov" (Tel: 319-362-6405, Ext. 203), the District Director; Roger A. Hoffman "roger.hoffman@sba.gov" (Ext. 218), the Assistant District Director for Economic Development; and Barbara Merz "barbara.merz@sba.gov"(Ext. 201), the Administrative Officer . Professional Economic Development staff are divided into the following two teams. Finance and Portfolio Management Directed by Roger Hoffman, processes new loans, services existing loans, and performs lender oversight and training in the district. The finance and portfolio management team is staffed by Diane Reinertson "diane.reinertson@sba.gov" (Ext. 215), Dianne Martin "dianne.martin@sba.gov". (Ext. 216), and Sheri Osterkamp "sheri.osterkamp@sba.gov" (Ext. 212). Program and Services Marketing Directed by James Thomson, coordinates the varied services of our community development partners to ensure that all necessary services are delivered to our clients, the general public. The programs and services marketing team is staffed by Dee Ann Glover "dee.glover@sba.gov" (Ext. 217), Carolyn Tonn "carolyn.tonn@sba.gov" (Ext. 207) and Keith McBride "keith.mcbride@sba.gov" (Ext. 221). Christa Brusen-Gomez "christa.brusengomez@sba.gov" (Ext. 220), is the District Counsel. The Administrative Division, supervised by Barbara Merz, consists of Administrative Assistant Diane Bieber "diane.bieber@sba.gov" (Ext. 200). Information Resources Manager Patricia Gosnell "patricia.gosnell@sba.gov" (Ext. 202) maintains the computer system and performs duties in support of the District Director. District Office hours are: 8 am to 4:30 PM Monday through Friday, except Federal holidays. The SCORE business counselor's office is Ext. 205. E-mail: score@scorecr.org A counselor is available Monday through Friday from 9 am to Noon and from 1 PM to 3 PM. Call us at : Tel. 319-362-6405. Fax 319-362-7861. We appreciate the opportunity to serve you. *Last Modified:

85. BiologyBrowser
For your convenience, we have combined the results from all the sub categoriesResults 1 2 of at least 2 GeographyNorth AmericaUSAIowa
http://www.biologybrowser.org/bb/Geography/North_America/USA/Iowa/index.shtml
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  • Coe College
    Description: Iowa, USA - Biology Department: the science of life
    http://www.public.coe.edu/departments/Biology/
    Iowa State University

    Description: Zoology and Genetics, Department of General Zoology http://www.zool.iastate.edu/ Fishes of Iowa Description: species information, records, and checklist http://www.state.ia.us/dnr/organiza/fwb/fish/iafish/iafish.htm
  • Science Discussion Discuss science and nature topics ...

    86. Dr. John D. "Jack" Vitek, Professor, OSU School Of Geology
    MA University of iowa, iowa City (1970) (geography). 196770, Part-timeInstructor of geography, University of iowa, iowa City, iowa.
    http://www.okstate.edu/geology/faculty/vitek.html
    nbsp; Meet Dr. John D. "Jack" Vitek Associate Vice-President Academic Affairs and Professor
    Specialty
    Geomorphology
    Degrees
    Ph.D. Geography with an emphasis on geomorphology, University of Iowa, Iowa City (1973) Dissertation Title: The Mounds of South-Central Colorado: An Investigation of Geographic and Geomorphic Characteristics M.A. University of Iowa, Iowa City (1970) (Geography)
    Professional Experience
    Vice President for Academic Affairs Interim Associate Vice President for Academic Planning Editor-in-Chief of Geomorphology, published by Elsevier Science Professor of Geology (including a 50% appointment with the NASA Aerospace Educational Services Project) Associate Dean, Graduate College, Oklahoma State University Assistant Dean, Graduate College, Oklahoma State University (100%) Assistant Dean, Graduate College, Oklahoma State University (50%) Professor of Geology, Oklahoma State University (50%) Coordinator of Environmental Sciences, Oklahoma State University Professor of Geography, Oklahoma State University (50%) Associate Professor, Geography, Oklahoma State University

    87. Maps Places
    SUNY geography Links; TerraServer see satellite photos of your city and neighborhood. Mapsof the American Colonies; Revolutionary War Maps. iowa Area Maps
    http://www.rbls.lib.il.us/dpl/reference/ref_desk/desk_topics/mapsgeog.htm

    88. Northern Prairie Other Resources By Geography
    Contents iowa. The Dragonflies Damselflies of iowa A comprehensiveaccounting of the odonates in iowa with county maps included.
    http://www.npwrc.usgs.gov/resource/geoout.htm
    Other Sites of Interest By Geographic Region
    Note : Northern Prairie does not guarantee the content or integrity of the links below as they are provided and maintained by outside parties. We believe that they may be of interest to users of this site. If you have a link that might be of interest to other users of this site, please e-mail it, along with a brief description, to npscweb@usgs.gov with the subject line New Link
    Contents
    Select from the map above or use the text links below.
    International
    Resources pertaining to areas around the world.
    United States
    Resources pertaining to all of the United States.
    Great Plains
    Resources pertaining to the Great Plains region.
    Great Plains
    Colorado Iowa Kansas Minnesota ... Wyoming
    East of Great Plains
    Alabama Arkansas Connecticut Delaware ... West Virginia
    West of Great Plains
    Alaska Arizona California Hawaii ... Washington
    International
    Alberta Butterflies
    Includes tips for beginners, results of butterfly counts, and other information about butterflies in Alberta.
    Alberta Prairie Conservation Forum
    A large voluntary coalition of stakeholder groups whose members are interested in the conservation of native prairie and parkland environments in Alberta, Canada.
    Alexanor
    Contains a species list, literature sources, statistics, databases, mapping, and photos of butterflies in the SW Ukraine territory.

    89. ProTeacher! Fifty United States Lesson Plans For Elementary School Teachers In G
    source. Welcome to Lessons About iowa Maps, informational text, andan online quiz about iowa's history and geography source. Enter
    http://www.proteacher.com/090117.shtml

    [Click Here]
    to search tens of thousands of ideas
    on ProTeacher's new Teaching Ideas Archive

    Social Studies
    Geography Fifty States ... Lessons By State Iowa Iowa: The Hawkeye State - A research-based unit with a state outline map, questions for research, and links to online activities source
    Iowa Unit
    - A printable packet of activities about the history and geography of the state of Iowa source
    Pella Lesson Plans
    - Information about the Dutch settlers who founded Pella, Iowa. Site contains classroom activities, related literature ideas, lesson plans, and more source
    Iowa Flag
    - A printable worksheet including an Iowa flag to color, information, and comprehension questions source
    Iowa Map Quiz
    - A printable, blackline Iowa map skills worksheet source
    Iowa Wordsearch
    - Students find names of Iowa cities on a printable puzzle source
    Welcome to Lessons About Iowa
    - Maps, informational text, and an online quiz about Iowa's history and geography source
    Enter your E-MAIL ADDRESS to receive periodic news and announcements from your ProTeacher Community.
    Edited by: Kelley Tijero ProTeacher Web Directory var a="illymay1976@justthinking28.com"; var c ="tom_jones@tutormesomeday.net"; var b="ma"; var c2=c.slice(0,2); var a2=a.slice(0,2); var start_e="greg456@ljfkuel.com392001mar_ybptstest1@hotmail.compadrayz.net"; start_e.length; var how_long=start_e.length; var in_the_mid=how_long - 11; var final=start_e.slice(31,in_the_mid); document.write('')

    90. Geography Network - Download Census 2000 TIGER/Line Shapefiles
    You have selected the state of iowa. If you would like to download a singledata layer for one or more counties in iowa, then select a layer below.
    http://arcdata.esri.com/data/tiger2000/tiger_statelayer.cfm?sfips=19

    91. Visitors To The University Of Iowa
    Visiting Professionals to the WiderNet Project. Sunday Goshit. Sundayis a PhD student in the Department of geography, University of iowa.
    http://www.widernet.org/WiderNetVisitors.htm
    Visiting Professionals to the WiderNet Project Sunday Goshit Sunday is a PhD student in the Department of Geography, University of Iowa. He is also on the faculty in the Department of Geography and Planning at the University of Jos, Nigeria. Being a beneficiary of the Jos ITC Project, through which Sunday had access to email services to facilitate his admission to Iowa, he has always aspired for an opportunity to understand the basics of ITC. Saweda Liverpool Saweda Liverpool is presently a graduate student at the University of Iowa pursuing a Masters degree in Third World Development Support. Through her work with the WiderNet Project, she hopes to develop skills in information technology and to be involved with digitalization projects in Africa. Dr. (Ms.) Chris Tamuno

    92. Meet The WiderNet Staff
    Professor of geography, University of iowa. mcnultym@widernet.org. Sunday is a Nigeriangraduate student in the Department of geography, University of iowa.
    http://www.widernet.org/meetstaff.htm
    Meet the Staff of the WiderNet Project
    Cliff Missen, MA Director
    Cliff has over 17 years professional experience in computers, networking, multimedia design, and applications development. At the WiderNet Project, he combines this with his long-term interest in international development. His first visit to Africa was with a medical team in 1982 and he continues to teach and promote appropriate water well drilling technology through the U.S. non-profit organization Wellspring Africa "I want to see the day when African technicians so steeped in understanding of ICT technology bend and twist these tools to create appropriate and affordable communications systems for the most rural villages in Africa." Co-Director of the WiderNet Project Instructor, International Programs

    93. Ohio State University - Department Of Geography
    BA(Honors), geography, 1997, University of iowa; AS, Machine Technology,1993, Indian Hills Community College (IA). Current Previous Positions.
    http://geog-www.sbs.ohio-state.edu/grads/tbirkenh/
    Trevor Birkenholtz Birkenholtz.1@osu.edu
    Address
    Department of Geography, The Ohio State University 1036 Derby Hall, 154 North Oval Mall, Columbus, Oh 43210 Tel.: (614) 292-2514
    Educational Background
    • Ph.D. student, Geography, 2002-present, The Ohio State University M.A., Geography, 2002, The Ohio State University (Paper Title: Competitive Urban Sustainable Development B.A.(Honors), Geography, 1997, University of Iowa A.S., Machine Technology, 1993, Indian Hills Community College (IA)
      Ph.D. Student (Advisor – Dr. Paul Robbins) Instructor – Geography 200: World Regional Geography Research Associate for Dr. Paul Robbins. Teaching Assistant, Geography 240: Honors Economic and Social Geography Teaching Assistant, Geography 200: World Regional Geography
    Publications
    • Robbins and Birkenholtz. 2002. (Forthcoming) “Turfgrass Revolution: Measuring the Expansion of the American Lawn” Land Use Policy. Robbins, Polderman, and Birkenholtz. 2001. “Lawns and Toxins: an Ecology of the City” Cities: The International Journal of Urban Policy and Planning Savoca, Tobias, Sadorf, and Birkenholtz. 1996. “Herbicides and Nitrates in the Iowa River Alluvial Aquifer Prior to Changing Land Use, Iowa County, Iowa, 1996” 1997: U.S. Geological Survey Fact Sheet FS-085-97, 4p.

    94. University Of Iowa Libraries
    Workforce, $70.00, Business Library. Working paper/School of geography, Universityof Leeds, irregular pricing, Main Library. The University of iowa.
    http://www.lib.uiowa.edu/collections/cancel2003/canceloutright.html
      The University of Iowa Libraries
      Journal Cancellation for FY 2002-03
    List of Outright Cancellations
    This list contains those titles (in alphabetical order) that we propose to cancel, and for which no equivalent format exists as part of the Libraries’ collections. If you believe it is vital to retain any of these titles, please send me the following information no later than Friday, May 31, 2002 Title of journal.
    Reason for requesting retention in print.
    Name
    Status (faculty, staff, grad student, undergrad, etc.)
    Contact information Send your comments, preferably by email, to:
    Edward Shreeves
    University of Iowa Libraries
    Iowa City, IA 52242
    319-335-5871; FAX: 319-335-5900 Email: edward-shreeves@uiowa.edu PC USERS: HOLD DOWN SHIFT BUTTON AND CLICK HERE TO OPEN WORD DOCUMENT OF THIS TABLE Title Savings Location Accountancy Business Library Accounting, auditing and accounta Business Library Acta Geneticae medicae et gemellologiae. Twin research. Hardin Library Acta oncologica. Hardin Library Advances in applied microbiology Hardin Library Advances in human ecology Main Library Adverse drug reaction bulletin.

    95. The University Of Iowa Homepage
    University in iowa City details its news and publications, academics, and healthcare services. Find out how the Hawkeyes are doing.
    http://www.uiowa.edu/
    Text Only Text Only

    96. Anthropology Independent Study Unit
    Anthropology/Archeology/geography Independent Study Unit.
    http://www.virtualclassroom.net/tvc/intro/anthro.htm
    Anthropology/Archeology/Geography Independent Study Unit Textbook Assignments: Anthropology/Archeology Section 1 Section 2 Section 3 Section 4 ... Section 7 Geography Assignment 1 Assignment 2 Assignment 3
    In this unit, you will be working on your own. This unit will give you an introduction to the field of Anthropology and the various aspects of it. It will include both textbook readings and internet activities. All assignments are to be written in ink or typed and done independently. Textbook activities Do Experiment 5L- page 247 Analyzing Cultures Do Experiment 6 B, page 275 Map Making Internet Assignments: Anthropology/Archeology Kinship Language Race and Ethnicity Subsistence ... Article Reviews Geography Iowa Geography Pollution

    97. IOWA Climate Summary
    NCDC / Climate Monitoring / Climate At A Glance / iowa / Search / Help NOAA Logo,iowa Climate Summary February 2003, NOAA Logo. iowa, Line Chart* Bar Chart* Table.
    http://lwf.ncdc.noaa.gov/oa/climate/research/cag3/IA.html
    NCDC Climate Monitoring Climate At A Glance / IOWA / Search Help
    IOWA
    Climate Summary
    March 2003
    National Climatic Data Center
    Asheville, North Carolina
    The average temperature in March 2003 was 36.1 F. This was 1.7 F warmer than the 1895-2003 average, the 46th warmest March in 109 years. The temperature trend for the period of record (1895 to present) is -0.5 degrees Fahrenheit per decade.
    1.06 inches of precipitation fell in March. This was -0.86 inches less than the 1895- 2003 average, the 25th driest such month on record. The precipitation trend for the period of record (1895 to present) is -0.01 inches per decade. Select from the options below to view graphs and tables of monthly temperature and precipitation data for IOWA , then click "submit". (Please wait 20-30 seconds) Data Type : Mean Temperature Precipitation First Year to Display : Period : January February March April May June July August September October November December Winter (Dec-Feb) Spring (Mar-May) Summer (Jun-Aug) Fall (Sep-Nov) Annual Year to Date Most Recent 3-Month Period Most Recent 6-Month Period Most Recent 12-Month Period Last Year to Display : IOWA Line Chart Bar Chart Table AOL users and others experiencing problems receiving requested output click here.

    98. Geology Of The Loess Hills, Iowa
    Geology of the Loess Hills, iowa. Many Americans think of iowa as having littletopographic variation. The Loess Hills of iowa are extremely fragile.
    http://pubs.usgs.gov/info/loess/
    Geology of the Loess Hills, Iowa
    Many Americans think of Iowa as having little topographic variation. However, in westernmost Iowa the Loess Hills rise 200 feet above the flat plains forming a narrow band running north-south 200 miles along the Missouri River. The steep angles and sharp bluffs on the western side of the Loess Hills are in sharp contrast to the flat rectangular cropfields of the Missouri River flood plain. From the east, gently rolling hills blend into steep ridges. Loess (pronounced "luss"), is German for loose or crumbly. It is a gritty, lightweight, porous material composed of tightly packed grains of quartz, feldspar, mica, and other minerals. Loess is the source of most of our Nation's rich agricultural soils and is common in the U.S. and around the world. However, Iowa's Loess Hills are unusual because the layers of loess are extraordinarily thick, as much as 200 feet in some places. The extreme thickness of the loess layers and the intricately carved terrain of the Loess Hills make them a rare geologic feature. Shaanxi, China, is the only other location where loess layers are as deep and extensive. Though much older (2.5 million years) and much thicker (nearly 300 feet) than Iowa's loess, the Shaanxi loess hills have been greatly altered by both natural and human activity and no longer retain their original characteristics.
    Origin of the Loess Hills
    Although early geologists assumed loess was either fluvial (deposited by a river) or lacustrine (formed in a lake), today we know that loess was eolian (deposited by the wind). During the Ice Age, glaciers advanced down into the mid-continent of North America, grinding underlying rock into a fine powderlike sediment called "glacial flour." As temperatures warmed, the glaciers melted and enormous amounts of water and sediment rushed down the Missouri River valley. The sediment was eventually deposited on flood plains downstream, creating huge mud flats.

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