Illinois Natural History Survey - University of Illinois

NAUVOO 

Lilypads in the Nauvoo RRA, photo by Mike Jeffords, INHS Cedar Glenn is a large, forested tract along the bluffs of the Mississippi River. The rugged bluffs are mostly mature second growth forest dominated by oak, hickory, sugar maple, and basswood. This Nature Preserve is a significant roosting site for wintering bald eagles.

Map of Site
Land Cover Map of Site

SIZE: 150,316 acres; 235 square mile

LOCATION: Western Illinois on the Mississippi River; Hancock and Henderson counties

The Nauvoo RRA is located in west-central Illinois on the Mississippi River. Sharply dissected bluffs divide the low, level bottomlands along the river from the higher rolling uplands. The natural resources--woodlands, wetlands, and larger Natural Areas--are mainly associated with the river.

Nauvoo is probably most noteworthy for its history tied to the Church of Jesus Christ of Latter Day Saints (Mormons). From 1839 to 1846 Nauvoo was the religious, governmental, and cultural center of the Mormons. With 12,000 inhabitants, it was one of the largest cities in Illinois.

LANDCOVER : Cropland is the predominant landcover type (56%) within this site. Approximately 17% of the RRA is wooded (12% upland and 5% bottomland woods). Nonforested wetlands are not abundant. The Mississippi River accounts for the high percentage of water.

NATURAL AREAS : There are nine Natural Areas which range from a four-acre hill prairie site to a 3,856 acre forest tract (Cedar Glen). Natural resources in these areas include aquatic systems, forested bluffs, sand hills, and geological features.

BIOLOGICALLY SIGNIFICANT STREAMS: There are no BSS streams in this RRA.

HERITAGE SITES : Thirty-six Heritage sites occur within the RRA. Seven significant community types, two plant species, 11 animal species, and two rookeries are represented.

STATE AND FEDERAL LAND : Nauvoo State Park is the only state or federal land in the RRA.

NATURE PRESERVES : Two Nature Preserves exist in this RRA. They protect a large forested tract surrounded by cropland and sand hills which support upland forest and prairie communities.

NATURAL DIVISIONS : This RRA is comprised of five natural divisions, approximately half lies in the Middle Mississippi Border Natural Division. The Upper Mississippi and Illinois River Bottomlands, Western Forest-Prairie, and Illinois and Mississippi River Sand Areas divisions comprise 14%, 13%, and 12%, respectively, of the RRA.


 

SUMMARY OF SITE CHARACTERISTICS: SIZE, BIOLOGIC RESOURCES, AND PUBLIC LANDS

Total Acreage 150,316
Natural Areas

    Acreage

7,409

    Number

9
Biologically Significant Stream Mileage 0
Natural Heritage Sites 36
State Land

    State Parks

1

    State Conservation Areas

0

    State Forests

0

    State Fish & Wildlife Areas

0

    Acreage

140

    Percentage of RRA

0.1
Federal Land

    Acreage

0

    Percentage of RRA

0.0

 


 

LANDCOVER

    Acres

    % of RRA

Upland forest 18,298.16 12.17
Bottomland forest 8,029.53 5.34
Wetland- nonforested 516.42 0.34
Grassland 19,645.11 13.07
Cropland 84,511.98 56.22
Urban/Built-up 2,884.98 1.92
Water 16,423.34 10.93
Total 150,309.52 99.99

 


 

ILLINOIS NATURAL AREAS INVENTORY SITES

    Acres

Cedar Glen Area 3,856
Gladstone Lake *
Jackson Cemetery Geological Area 7
Mississippi River -Drew Chute 1,218
Mississippi River -Pontoosuc 1,189
Mt. Moriah Geological Area 7
New Crystal Lake Club 1,123
Tyson South Geological Area 5
Waggoner Creek Hill Prairie 4
* = point location, map not available

 


 

BIOLOGICALLY SIGNIFICANT STREAMS
None

 


 

NATURAL HERITAGE CATEGORIES
Communities Occurrences

    Types/Species

    Floodplain Forest

1 1

    Wetland

1 1

    Savanna

3 3

    Prairie

2 2
Threatened and Endangered Animals

    Bird

8 2

    Fish

2 2

    Mammal

2 1

    Reptile

2 2

    Mollusk

6 4
Threatened and Endangered Plants

    Plant-Monocot

2 2
Geological Feature

    Geological Feature

5 1
Other

    Rookery

2 1

 


 

STATE AND FEDERAL LAND
State Parks

    Acres

    Nauvoo

140
State Conservation Areas 0
State Forests 0
State Fish and Wildlife Areas 0
Federal Land 0

 


 

ILLINOIS NATURE PRESERVES

    Acres

Cedar Glen 191
Mississippi River Sand Hills 53

 


 

NATURAL DIVISIONS Acres in RRA

    % of RRA

    % of Division

Middle Mississippi Border 75,445 51.8 4.9
Upper Mississippi R and Illinois R Bottomlands 20,353 14.0 1.7
Western Forest-Prairie 18,802 12.9 0.4
Illinois R and Mississippi R Sand Areas 17,266 11.9 4.5
Major Water Bodies 13,800 9.5 1.1



Illinois Natural History Survey

1816 South Oak Street, MC 652
Champaign, IL 61820
217-333-6880
cms@inhs.illinois.edu

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