Iowa Soil Regions - USDA · PDF fileLee Ida Tama Sioux Polk Clay Iowa Lyon Kossuth ... Henry...
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Transcript of Iowa Soil Regions - USDA · PDF fileLee Ida Tama Sioux Polk Clay Iowa Lyon Kossuth ... Henry...
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Linn
Sac
Lee
Ida
Tama
Sioux
Polk
Clay
Iowa
Lyon
Kossuth
Cass
Jasper
Story
Page
Adair
Clayton
Fayette
Benton
Clinton
Cedar
Butler
Dallas
Jones
Mills
Plymouth
Davis
Floyd
Scott
Wright
Boone
Webster
Taylor
Monona
Shelby
HardinWoodbury
Carroll
Marion
OBrien
Harrison
Warren
Guthrie
Greene
Wayne
Crawford
Jackson
Keokuk
Henry
UnionLucas
Franklin
Johnson
Decatur
CalhounDubuque
Pottawattamie
Grundy
Marshall
Clarke
Worth
Madison
Hancock
Mahaska
Hamilton
Allamakee
Palo Alto
Delaware
Louisa
Fremont
Howard
Adams
Cherokee
Mitchell
Bremer
Ringgold
WinneshiekEmmet
Monroe
Buchanan
Wapello
Poweshiek
Black Hawk
Osceola
PocahontasBuena Vista
Audubon
Washington
Van Buren
Chickasaw
Jefferson
Cerro Gordo
Appanoose
Humboldt
Muscatine
Dickinson
Des Moines
Winnebago
Montgomery
Des MoinesAdelLogan
Onawa Boone
Osage
HarlanNewton
Nevada Toledo
Vinton
Eldora
AlgonaGarner
Sibley
Waukon
Cresco
Bedford Corydon
Red OakCorning
CrestonOttumwa
Wapello
Audubon
Marengo
DenisonCarroll
Clinton
Anamosa
Le Mars
Dubuque
WaverlyAllison
Spencer
Decorah
Clarinda
Glenwood
Chariton
Atlantic
Sac CityWaterloo
Mount Ayr Keosauqua
Fairfield
Knoxville OskaloosaIndianola
Muscatine
MontezumaDavenport
Iowa City
Jefferson
Ida Grove
Maquoketa
Northwood
Burlington
GreenfieldWashington
Sioux CityFort Dodge
Storm Lake
Manchester
Emmetsburg
West Union
Mason City
Centerville
Dakota City
Orange City
Forest City
Rock RapidsEsthervilleSpirit Lake
Fort Madison
Marshalltown
Cedar Rapids
Webster City
Grundy Center
Mount Pleasant
Council Bluffs
Leon
Albia
Sidney
Tipton
Osceola
Clarion Hampton
Elkader
Cherokee
Primghar
Winterset
Sigourney
Bloomfield
Pocahontas
New Hampton
Independence
Charles City
Rockwell City
Guthrie Center
80
680
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380
280235
29
52
169
20
151
30
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34
61
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71
69
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63
275
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61
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169
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59
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136
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31
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140
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439
12
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141
15
148
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281
149
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38
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14
210
92
175
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1
17
25
78
7
188
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22
330
346
212
187150
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26
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415
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141
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13
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141
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149
150
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175
28
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175
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10
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80
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218
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Illinois
Missouri
Minnesota
Nebraska
Wisconsin
South Dakota
Iowa Soil Regions
LegendSoil Regions
1 Loess over glacial till - low rainfall
2 Northwest Iowa Loess
3 Tazewell Glacial Till
4 Loamy Wisconsin Glacial Till
5 Clayey Lake Deposits
6 Iowan Erosion Surface
7 Shallow to Bedrock
8 Loess with Bedrock Outcrops
9 Shallow Loess over Glacial Till
10 Loess Ridges and Sideslopes
11 Loess with exposures of Glacial Till
12 Very Deep Loess
13 Missouri River Bluffs
14 Missouri River Alluvium
15 Loess Ridges/Glacial Till - SW Iowa
16 Loess, Shale, and Glacial Till
17 Loess Ridges/Glacial Till - SE Iowa
18 Eolian Sand
19 Loess - Timbered
20 Alluvium
21 Loess Ridges/Glacial Till Sideslopes
22 Loess Ridges/Clay Paleosol
23 Water
0 25 50 7512.5Miles