Basal sand and gravel thickness of the middle Illinois River valley, Bureau, LaSalle, Marshall, Peoria, Putnam, and Woodford Counties, Illinois: Illinois State Geological Survey, Illinois Map 22, 1:62,500. Description: One 41" × 45" map sheet; contains map, legends; descriptive text, 1 table, and 3 figures.
Author: Berg, R.C., E.D. McKay III, and B.J. Stiff, 2015
Soil parent materials of the middle Illinois River valley, Bureau, LaSalle, Marshall, Peoria, Putnam, and Woodford Counties, Illinois: Illinois State Geological Survey, Illinois Map 21, 1:62,500. Description: One 32" × 45" map sheet; contains map, legend; and descriptive text.
Authors: Berg, R. C., E.D. McKayy III, and B. J. Stiff, 2015
Aquifer sensitivity of the basal sand and gravel of the middle Illinois River valley, Bureau, LaSalle, Marshall, Peoria, Putnam, and Woodford Counties, Illinois: Illinois State Geological Survey, Illinois Map 20, 1:62,500. One 40" × 45" map sheet; contains map, legend; descriptive text, and 2 figures.
Authors: Berg, R.C., E.D. McKay III, and B.J. Stiff, 2015,
Geologic Cross Sections Across the Mahomet Bedrock Valley, Champaign, Ford, McLean, Piatt, and Vermilion Counties was developed in the process of building a three-dimensional geologic model of the Mahomet aquifer. These detailed illustrations provide a window into the subsurface of this part of east-central Illinois that was not possible before. The cross sections depict the geologic materials encountered between the land surface and the bedrock along specific lines, or transects, across the Mahomet Bedrock Valley. The sequences shown of clayey sediment, interpreted as till and glacial lake sediment, and glacial sand and gravel capture the complex history of deposition and erosion of at least three main episodes of glaciation during the Quaternary Period. This map will be an important resource for people in the region who study or manage the underground water supplies, especially those involved in modeling groundwater flow, estimating water supplies, or evaluating water quality.
Drift Thickness of the Middle Illinois River Valley, Bureau, LaSalle, Marshall, Peoria, Putnam, and Woodford Counties, Illinois: Illinois State Geological Survey, Illinois Map 18, 1:62,500.
This map depicts the top elevation of the basal sand and gravel of the middle Illinois River Valley region from east of the “Big Bend” of the river near Hennepin to south of Chillicothe. This sand and gravel unit resides directly above the bedrock surface, is often thicker than 100 feet, and constitutes a major drinking water resource for the region. The map provides insight into the erosional and depositional history of the ancient Mississippi River, the ancient Illinois River, and the modern Illinois River. The topography of the sand and gravel deposit reflects numerous periods of sand and gravel deposition and erosion associated with glacial advances and retreats across the region and associated glacial-fluvial and modern fluvial events. The map is an essential precursor to an aquifer sensitivity map for the region, which will be based on the depth to and thickness of this basal deposit. The map is an outgrowth of mapping for a proposed Illinois Department of Transportation highway improvement project along Illinois Route 29 on the west side of the Illinois River north of Chillicothe.
This surficial geology map, with information on the subsurface distribution of geologic materials, is valuable for the identification of opportunities and limitations for future land development and anticipation of the likely consequences of past and future land-use decisions. Typical applications of the map include estimation of groundwater resource potential, occurrences of potential aggregate resources, geologic conditions that may present hazards for construction, and the capability of the geologic setting to support certain land uses such as a landfill. The map is an outgrowth of mapping for a proposed Illinois Department of Transportation highway improvement project along Illinois Route 29 on the west side of the Illinois River north of Chillicothe.
This bedrock topography map reveals the geomorphic features created by the ancient Mississippi River, the ancient Illinois River, the modern Illinois River, and numerous glacial advances and retreats. In the map area, the bedrock surface is buried beneath as much as 330 feet of glacial and post-glacial sediments. The overall relief (hills and valleys) of the bedrock surface affects the types of bedrock at its surface. This relationship is important for depicting the depth to bedrock for drilling operations and for predicting the distribution of shallow, economically significant rock resources. Most important, mapping of the bedrock topography delineates buried bedrock valleys, which often contain sand and gravel deposits that are aquifers. The map was an outgrowth of mapping for a proposed Illinois Department of Transportation highway improvement project along Illinois Route 29 on the west side of the Illinois River north of Chillicothe.
This statewide, full-color map includes much more detail
about the state's bedrock geology than was previously
available. Complex geologic features on the map, such as
the bedrock geology near Hicks Dome in Hardin County, are
shown in exploded view. The new information on the map was
gleaned during the most recent 10 years of Survey mapping.
Side 1 contains the map itself, the areas mapped since
1967, a legend, and explanation of symbols. Side 2
displays two large cross sections, one the width and the
other the length of the state. A highly detailed
stratigraphic column is shown. Several smaller maps
portray other aspects of Illinois geology, including Sub
Kaskaskia geology, Sub-Absaroka (Pennsylvanian Period
geology, Quaternary geology, Sub-Tippecanoe geology,
structural features, and the top of the Precambrian.
Wirelog information and references are given also.
This statewide map shows active and idle mines, mined
areas, major coal-burning power, industrial, and
institutional plants; coal-loading docks; tables on mines,
coal-burning power, industrial, and institutional plants,
coal balance for Illinois in 1995; and generalized
This map was produced in response to a need for current,
detailed information about Illinois land, the raw material
of the state. This land cover information for twenty-six
identified categories is essential to ensure wise land-use
decisions and good land stewardship. The satellite image
data used to construct the map revealed that more than 76%
of Illinois land is devoted to agriculture, primarily corn
and soybeans, followed by forested lands (11.5%), urban
and built-up lands (6.5%), wetlands (3.9%), and surface
water (1.7%). A great companion to the Illinois
Surface Topography map.
This map shows the state's land surface in unprecedented
detail, revealing regional structures and landforms that
are too subtle to recognize on previous topographical
maps. This amazing image of the state was created by using
digital elevation data and by exaggerating the vertical
scale twenty times. Lighting, shading, and color tinting
techniques used in the map's production allow the reader
to spot easily the landscape features such as floodplains,
hills, river valleys, and glacial moraines. Scientists
viewing the map for the first time quickly noticed
landforms they hadn't seen before, including the unusual
ridged topography along Interstate 39 in eastern Winnebago
With this road map in your car, you'll be able to check
whether that hill in the distance is a moraine! Side
relates the geology of Illinois to its highways and
cities, so you can pinpoint your location and the
geological features you see around you. Plus, these
features are color-coded to explanatory text, making it
easy to find out about specific locations. Side 2 contains
maps of Illinois land cover, surface topography,
quaternary geology, topography of the bedrock surface, and
bedrock geology. Easy-to-understand explanations are
Satellite Image Map of Illinois
Richard E. Dahlberg, Donald E. Luman, and Alden Warren, 1985, 37.5 x 57.5 inches.
2015 marks the 30 year anniversary of this history making map! According to Survey records this map sold more copies in the first few days of its release than any other map publication in Survey history. Perhaps you have a copy that needs to be replaced, or perhaps you have not owned one, so now is your chance!
In honor of its 30 year anniversary this item is being offered free of charge, you only pay the shipping charge. If you would like multiple copies please call, 217-244-2414 or email, firstname.lastname@example.org.
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