Natural History Data

GIF images are not cartographic products; they portray the general nature of the data.


Archaeological Resource Potential

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Areas in Illinois believed to posses a high archaeologic potential. Data developed by the Illinois State Museum and intended for coarse regional analysis. ISM, 1994.


Critical Trends Assessment Land Cover Database, 1991-95

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County by county land cover grid data for Illinois. Derived from Thematic Mapper Satellite data from the Landsat 4 sensor. Intended to serve as a base line for assessment and management of biologic natural resources in Illinois. Includes land cover classifications for each grid. See distribution information. IDNR, 1996.


Federally-owned Lands

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Federal lands in Illinois. Digitized from maps provided by USFWS, county plat books, and 1:24,000 quadrangle maps. Attributes include name and information source. INHS, 1996.


Illinois Natural Areas Inventory (INAI) Sites: Polygons

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Illinois Natural Areas Inventory (INAI) sites in Illinois, digitized from USGS 7.5 minute quadrangles or from aerial photographs. The INAI is a statewide inventory of outstanding examples of natural landscape features remaining in Illinois including high quality natural communities or community restorations; specific suitable habitat of endangered and threatened (E&T) species or species translocations; state-dedicated nature preserves, land and water reserves, or natural heritage landmarks; outstanding geological features; and unusual concentrations flora and/or fauna. Please note that this dataset is updated quarterly.


Notice: On-line access to this data set is not currently available. You may FAX, email, or mail us a request for a copy of the data. No phone calls please as all requests must be submitted in writing. Include a brief description of yourself, your project and the intended data use as well as maps/shapefiles/or descriptions of the area of coverage you desire. Direct your request to the attention of Tara Kieninger: 217/ 782-2685 or 217/785-2438 (FAX). tara.kieninger@illinois.gov.


Illinois Nature Preserves Commission (INPC) Land Protection Areas

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Land Protection Areas overseen by the Illinois Nature Preserves Commission (INPC) including Dedicated Nature Preserves, Registered Land and Water Reserves, and Natural Heritage Landmarks, digitized from USGS 7.5 minute quadrangles. Please note that this dataset is updated quarterly. Nature Preserves: Only high-quality natural areas qualify for this land protection tool. Dedication is the strongest protection that can be given to land and provides permanent protection. The owner retains custody but voluntarily restricts future uses of the land in perpetuity to preserve its natural state and to perpetuate natural conditions. Qualifying lands in private, corporate, or government ownership can be dedicated as an Illinois Nature Preserve. This agreement may result in financial benefits to the landowner, primarily in the form of a charitable contribution deduction on federal income taxes and a local property tax reduction. The biggest benefit to the landowner is the assurance that their cherished land will be permanently and legally preserved while still allowing them to enjoy it now and pass it on to their heirs.


Land and Water Reserves: Lands and waters of Illinois that support significant natural heritage or archaeological resources qualify for this land protection tool. The agreement to register an area as a Land and Water Reserve determines allowable uses and stipulates management objectives. Registered Reserves may be in public or private ownership. The agreement may be for a term of years or permanent. The property can be sold or passed on to heirs subject to the agreement. Land and waters permanently registered may qualify for reduced tax benefits in the form of a local property tax reduction and possibly a charitable contribution deduction on federal income taxes.


Natural Heritage Landmarks: This is a recognition program that introduces a landowner to the concept of natural area protection and allows the state to assist with management of the natural area. It is a voluntary program that increases understanding of the value of natural areas and encourages their preservation by private landowners. An agreement document determines provisions and can be terminated by either party on sixty days notice.


Notice: On-line access to this data set is not currently available. You may FAX, email, or mail us a request for a copy of the data. No phone calls please as all requests must be submitted in writing. Include a brief description of yourself, your project and the intended data use as well as maps/shapefiles/or descriptions of the area of coverage you desire. Direct your request to the attention of Tara Kieninger: 217/ 782-2685 or 217/785-2438 (FAX), tkieninger@dnrmail.state.il.us.


State Conservation Areas

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State Conservation Areas in Illinois. Digitized from maps provided by DNR, county plat books, USGS TIGER files, and 1:24,000 quadrangle maps. Attributes include area name and information source. INHS, 1996.


State Forests

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State forests in Illinois. Digitized from maps in county plat books, from 1:24K quadrangle maps and the Illinois Department of Conservation Land and Water Report of 30 June 1994. Attributes include forest name and information source. INHS, 1996.


State Fish and Wildlife Areas

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State Fish and Wildlife Areas in Illinois. Digitized from maps provided by DNR, county plat books, USGS TIGER files, 1:24,000 quadrangle maps, and the Illinois Department of Conservation Land and Water Report of 30 June 1994. Attributes include area name and information source. INHS, 1996.


State Parks

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State parks in Illinois. Digitized from maps provided by DNR, county plat books, USGS TIGER files, 1:24,000 quadrangle maps, and the Illinois Department of Conservation Land and Water Report of 30 June 1994. Attributes include park name and information source. INHS, 1996.