IGSMap is the public source for geologic maps and data in Indiana. The Map Gallery helps people find commonly used maps and information for a better understanding of Indiana's geologic materials, resources, and issues.
Allen County Geology
The Allen County Geology Map - An online map focusing on the geology of Allen County in northeastern Indiana. Located astride the eastern continental drainage divide, Allen County encompasses some of the most complex and interesting geology and groundwater issues found anywhere in the eastern U.S. Virtually every aspect of modern life is influenced in some way by the geologic underpinnings of the county, from the groundwater that provides most of the region's water, to the limestone bedrock that supplies the basic building materials for most infrastructure. This map provides a wide range of geologic information for Allen County, including surficial geology, drift thickness, bedrock geology, bedrock topography, water table elevation, and aquifer sensitivity.
Marion County Geology
The Marion County Geology Map - An online GIS focusing on the geology of Marion County, in central Indiana. Marion county is located in the physigraphic province known as the Central Till Plain Region. This region is characterized by thick deposits of pre-Wisconsin and Wisconsin glacial materials that overlie bedrock. The character of these glacial and bedrock materials affects a wide variety of environmental conditions, including the availability of drinking water and building materials, the character of the landscape and land use. This map provides a wide range of geologic information for Marion County, including bedrock geology, bedrock topography, glacial geology, hydrogeologic settings and aquifer sensitivity.
The Lake Michigan Rim GIS - An online GIS of Northwestern Indiana, built as a collaborative effort between federal, state and local agencies and communities to provide information needed to assist the public's involvement in local resource use and planning issues. The data provided include locally developed data, environmental assessment data for selected projects in this region of Indiana, as well as many years of aerial photography. Many of these datasets are free and available for download, and all data are documented with compliant metadata.
Indiana Historical Aerial Photos Index (IHAPI)
The Indiana Historical Aerial Photography Index (IHAPI) - An online map to facilitate the identification and retrieval of historical aerial photographs. IHAPI allows users to easily locate a site of interest and determine unique identification numbers for individual photos on all index maps for a given area of interest. Copies of the photos can then be ordered from various archival collections, including the IGS archive. IHAPI provides an index to over 113,000 photos taken from the early 1940's until the 1970's. The IGS archives offers digital scans for over 40,000 of these images.
Campus Limestone Tour
The IUB Campus Walking Tour - An online map highlighting the limestone, architecture, and history of the IU campus in Bloominton, Indiana. Utilizing a "story board" format, this interactive map can be used on any mobile device to enhance the walking tour of the IUB campus. Users can click features on the map to see photos and read information detailing the limestone used in construction of each building, the architecture style, and historic facts.
CUSEC Region Historic Epicenters and Seismic Stations
This map shows the locations of all known historical earthquakes in the eight states comprising the Central United States Earthquake Consortium (CUSEC) (Alabama, Arkansas, Illinois, Indiana, Kentucky, Mississippi, Missouri, and Tennessee) with a moment magnitude (Mw) equal to or greater than 3.0. In addition to the epicenters, this map shows the distribution of active and inactive permanent seismic recording stations known in the eight CUSEC states.
Major Sources of CO2 Emissions from Coal
This map journal contains information about CO2 emissions from coal in Indiana. The maps show major point sources of CO2 emissions, including industrial and institutional coal-burning electric power plants, and also Indiana coal mines.
Atlas of New Albany Shale Photomicrographs of Organic Matter
This map journal shows site locations from which New Albany Shale photomicrographs from Indiana, Illinois, and Kentucky are available for viewing. Photomicrographs can be viewed by New Albany Shale member or by maturity. For each photomicrograph there is a link to an Adobe Acrobat PDF that contains the photo and associated data.
The Industrial Mineral Industry of Indiana
Directory of Industrial Mineral Producers in Indiana - Shows the locations of active industrial mineral in Indiana. These operations extracted and (or) produced the following commodities: cement, clay and shale, crushed stone, dimension limestone, dimension sandstone, gypsum, lime, peat, and sand and gravel.
Colchester Coal Member
The Indiana Geological Survy has been collecting physical and chemical data and mapping the Colchester Coal Member (Pensylvanian) for many years. This is the most comprehensive digital compilation of geologic information about the Colchester Coal in Indiana the is currently avaliable from the Indiana Geological Survey.
New Albany Shale
The Indiana, Kentucky, and Illinois State Geological Surveys have been collecting physical and chemical data and mapping the New Albany Shale for many years. This story map is the most comprehensive digital compilation of geologic information about the New Albany Shale and its members. These data are important for regional evaluations and can be used by the public, industry, and state and federal governments.