GEOGRAPHIC INFORMATION

Yellowstone River Physical Features Inventory, 2001

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Data Provider DTM Consulting, Inc.
USDA Natural Resources Conservation Service
Montana Dept of Natural Resources and Conservation
Montana Dept of Environmental Quality
Date 2001
Content Type Downloadable Data
Abstract This is an inventory of structures and bank features of the Yellowstone River in Montana and North Dakota that may affect the flow or course of the river. The inventory was sponsored by the Yellowstone River Conservation Districts Council and partner agencies.The data are a combination of an inventory done in Park County in 1999 and an inventory that was done for the remaining downstream extent of the river in 2001. The data were modified in 2014 to remove records of items that were outside the scope of the study.The downstream inventory was conducted in October 2001 using a Rapid Aerial Assessment (RAA) technique. Features were mapped using a helicopter and crew equipped with GPS devices. Subsequent ground-truthing (via jet boat) was conducted for purposes of locating additional structures not visible from the air and structure condition assessment.Features identified and mapped during the RAA include: - Existing stream stabilization structures (riprap, jetties, dikes, flow deflectors, etc.) - In-channel structures (irrigation diversions, head gates, pump sites) - Stream crossings (bridges, power lines) - Irrigation return flow points - Accelerated bank erosion - Significant natural sediment sources (valley wall sloughing) - Municipal Structures (water intake structures, lagoon discharge points) - Floodplain Features (dikes, elevated ditches, elevated roads) - limited mappingThe Park County inventory was part of an Historic Channel Modification Inventory for the years 1954, 1973 and 1999 to support the cumulative effects investigation sponsored by the Governor's Upper Yellowstone River Task Force. Starting with a physical features inventory conducted in April, 1998 by the USDA NRCS and Montana DEQ, 1999 aerial photos of the channel from Gardiner to Springdale were viewed in stereo and a variety of adjustments were made to features identifiable as barbs or jetties, riprap, and dikes: some features were reclassified; spatial extent of features were reduced or extended as appropriate, and new features were added. Other features identified in the original inventory (photo points, irrigation diversions, etc.) were deleted. Additional information used to supplement interpretation of the 1999 photos included field notes and mapping done in August and September 2000 and 2001, and topographic mapping done in support of the project.
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The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
Data Access https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Collections/Yellowstone_River_Clearinghouse/Geodatabases/Yellowstone_2001_Features.zip
Distributor Montana State Library
PO Box 201800
 Helena, MT 59620-1800
Telephone: 406-444-5354
TDD/TTY: Montana Relay 711
Fax: 406-444-0266
Email: geoinfo@mt.gov
Distribution liability The Montana State Library provides this product/service for informational purposes only. The Library did not produce it for, nor is it suitable for legal, engineering, or surveying purposes. Consumers of this information should review or consult the primary data and information sources to ascertain the viability of the information for their purposes. The Library provides these data in good faith but does not represent or warrant its accuracy, adequacy, or completeness. In no event shall the Library be liable for any incorrect results or analysis; any direct, indirect, special, or consequential damages to any party; or any lost profits arising out of or in connection with the use or the inability to use the data or the services provided. The Library makes these data and services available as a convenience to the public, and for no other purpose. The Library reserves the right to change or revise published data and/or services at any time.
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Metadata date 06/20/2016

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