The following was excerpted from Table 1 of the four-volume series titled "Northwest Indiana Site Inventory and Landuse/Landcover Study," and contains documentation information of the aerial photography used for the 1951 through 1990 imagery used to create this image catalog:
Year - date - scale - filmtype* - photo source** - photo I.D.
1951 - 12/09/1951 - 1:29,000 - B&W - USGS - PK
1958 - 09/12/1958 - 1:20,000 - B&W - ASCS - BFJ
1965 - 07/15/1965 - 1:23,000 - B&W - ASCS - BFJ
1980 - 04/19/1980 - 1:24,000 - B&W - SID - N/A
1990 - 09/25/1990 - 1:13,000 - CC - EMSL - 91793
*B&W: Black-and-white
*CC: Conventional Color
**ASCS: U.S. Department of Agriculture, Agricultural Stabilization and Conservation Service, Salt Lake City, Utah
**USGS: U.S. Geological Survey, Sioux Falls, South Dakota
**SID: Sidwell Company, 28 W 240 North Ave., West Chicago, Illinois
**EMSL: U.S. Environmental Protection Agency, Environmental Monitoring Systems Laboratory, Las Vegas, Nevada
This data set was compiled by Indiana University, Indiana Geological Survey, using data believed to be accurate; however, a degree of error is inherent in all data. This product is distributed "AS-IS" without warranties of any kind, either expressed or implied, including but not limited to warranties of suitability to a particular purpose or use. No attempt has been made in either the design or production of these data to define the limits or jurisdiction of any federal, state, or local government. These data are intended for use only at the published scale or smaller and are for reference purposes only. They are not to be construed as a legal document or survey instrument. A detailed on-the-ground survey and historical analysis of a single site may differ from these data.
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The information on these media is proprietary to Indiana University, Indiana Geological Survey. Any copying, adaptation, distribution, public performance, or public display of this information without the express written consent of Indiana University, Indiana Geological Survey is discouraged.
CREDIT
It is requested that the Indiana Geological Survey be cited in any products generated from this data. The following source citation should be included: GRAND_CALUMET_PHOTO_INDEX: Index to Aerial Photos of the Grand Calumet Area, Northwestern Lake County, Indiana (Indiana Geological Survey, Point Shapefile), digital representation by Sally Letsinger and Chris Dintaman, 2009.
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This product is provided "AS IS", without any other warranties or conditions, expressed or implied, including, but not limited to, warranties for product quality, or suitability to a particular purpose or use. The risk or liability resulting from the use of this product is assumed by the user. Indiana University, Indiana Geological Survey shares no liability with product users indirect, incidental, special, or consequential damages whatsoever, including, but not limited to, loss of revenue or profit, lost or damaged data or other commercial or economic loss. Indiana University, Indiana Geological Survey is not responsible for claims by a third party. The maximum aggregate liability to the original purchaser shall not exceed the amount paid by you for the product.
The information on these media is proprietary to Indiana University, Indiana Geological Survey. Any copying, adaptation, distribution, public performance, or public display of this information without the express written consent of Indiana University, Indiana Geological Survey is discouraged.
CREDIT
It is requested that the Indiana Geological Survey be cited in any products generated from this data. The following source citation should be included: GRAND_CALUMET_PHOTO_INDEX: Index to Aerial Photos of the Grand Calumet Area, Northwestern Lake County, Indiana (Indiana Geological Survey, Point Shapefile), digital representation by Sally Letsinger and Chris Dintaman, 2009.
LIMITATION OF WARRANTIES AND LIABILITY
This product is provided "AS IS", without any other warranties or conditions, expressed or implied, including, but not limited to, warranties for product quality, or suitability to a particular purpose or use. The risk or liability resulting from the use of this product is assumed by the user. Indiana University, Indiana Geological Survey shares no liability with product users indirect, incidental, special, or consequential damages whatsoever, including, but not limited to, loss of revenue or profit, lost or damaged data or other commercial or economic loss. Indiana University, Indiana Geological Survey is not responsible for claims by a third party. The maximum aggregate liability to the original purchaser shall not exceed the amount paid by you for the product.