DTM Consulting, Inc.; Bozeman, MT 20090615 vector digital data Helena, Montana Montana State Library https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Collections/Yellowstone_River_Clearinghouse/Geodatabases/yell_hist_banks.zip http://mslservices.mt.gov/Geographic_Information/Data/DataList/datalist_Details.aspx?did={17daa910-aba0-11e3-a5e2-0800200c9a66} This is an ESRI personal geodatabase that contains data representing the location of the Yellowstone River, digitized from georeferenced imagery, for four different time periods, 1948 to 1951, 1976, 1995, and 2001. The database contains the following feature datasets, with each dataset containing feature classes for each of the four time periods: Banklines -- polygons representing the bankfull flow channels of the river. Flowlines -- polylines representing flowlines (thalwags) through all of the channels. Flowlines_M -- polylines, with route measures, representing the primary of channel of the river. The database contains the following feature datasets with data that do not apply to a particular time period: Reach_Breaks -- polygons and lines showing the river divided into segments based on channel characteristics and geomorphic parameters. Valley_Centerline -- detailed and generalized route of the center of the river valley. Data was developed to support the Yellowstone River Cumulative Effects Study. Linework represents conditions in the photography. 1950 1976 1995 2001 ground condition Complete -110.25 -103.92 48.11 45.46 ISO 19115 Topic Category inlandWaters Stream channels Flow lines Yellowstone River Yellowstone River Montana None Linework and attributes represent the conditions noted in the photography. No interpretation of the photography was made to adjust for flow conditons. Linework was digitized at 1:6000, and up to 1:3000 in detailed areas. 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. Jim Robinson Montana DNRC mailing address

PO Box 201601

Helena MT 59620-1601 406-444-4247 jrobinson@mt.gov Data was prepared by DTM Consulting, Inc. for the Yellowstone River Conservation District Council. U.S. Geological Survey Sioux Falls, SD U.S. Geological Survey Earth Resources Observation Systems (EROS) Data Center http://edc.usgs.gov/products/aerial.html 1948 1951 ground condition This is the source of the circa 1950 data for Sweet Grass, Stillwater, and western Yellowstone counties. The EROS Data Center has archived thousands of rolls of film containing several million frames of historical aerial and satellite photographs dating back to the 1930's gathered from various Federal agencies. This archive includes the rather well known, often utilized NHAP and NAPP film, but the largest portion of this archive consists of original film acquired in support of the USGS 1:24,000 topographic quadrangle map series, taken during the 1940s through the 1970s. Most of this photography is reasonably large scale to support the production of the quadrangle maps. USGS EROS has implemented a medium-resolution digital product. The medium-resolution files are created at approximately 600 dpi with an output image size of around five inches square. U.S. National Archives and Records Administration (NARA) Washington, DC U.S. National Archives and Records Administration (NARA) http://www.archives.gov/research/formats/cartographic.html 1948 1951 ground condition This is the source of the circa 1950 data for Treasure, Rosebud, Custer, Prairie, Dawson, Richland, McKenzie, and eastern Yellowstone counties. U.S. Army Corps of Engineers 1976 ground condition The 1976 data were digitized from this source. U.S. Geological Survey Helena, MT Montana State Library http://mslapps.mt.gov/Geographic_Information/Data/Aerial_Photos/doqq1.aspx 1995 ground condition The 1995 data were digitized from this source. U.S. Department of Agriculture Natural Resources Conservation Service Helena, MT Montana State Library https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Collections/Yellowstone_River_Clearinghouse/Imagery/2001_IR/ 2001 ground condition The 2001 data were digitized from this source. State Plane Coordinate System 2500 45.000000 49.000000 -109.500000 44.250000 600000.000000 0.000000 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 Banklines Polygons representing the channels of the Yellowstone River TYPE Polygon Type Channel Channel Polygon Represents channel boundaries at an interpreted bank full flow. Interpretation of bank full was made through photo interpretation, noting features such as established woody vegetation, hard natural boundaries, and man-made obstructions. Island Island Areas These are interior or donut polygon areas. They were left in to allow the merging of small island areas into the channel polygons or to the calculate the acreage of island areas in analysis. Flowlines Centerlines of the Yellowstone River's channels CHANNEL Channel Type Primary Primary Channel This is the main channel thread. It tends to carry the majority of water in split flow situations. Water should be present in the photograph, and year round. Line is continuous throughout the study area. Secondary Secondary Channel Secondary channels should show water in the source photography and should carry water year round. These channels carry less water than the Primary channel. Anabranching Anabranching Channel Anabranching channels are similar in size and character to Secondary channels. The distinguishing feature is that it is separated from the Primary Channel by large island for a significant distance. Island width should be at least 3.5 times the width of the Primary Channel. These channels carry water year round. Overflow Overflow Channel Overflow channels should either be dry or have discontinuous water showing in the source photography. They tend to be active during runoff or flood conditions. Flowlines_M Primary channel of the Yellowstone River, with route measures. Reach_Breaks Geomorphic segments of the Yellowstone River UP_Reach ID number of reach upstream from the breakline CN_Reach ID number of reach downstream from the breakline BASIS Description of edits made to the line or the reason for creating a breakline at this location Select_rch Yes or No value indicating whether a map of the reach is available at https://ftpgeoinfo.msl.mt.gov/Documents/Maps/Collections/Yellowstone_River/Reach_Maps/ Valley_Centerline Centerline of the Yellowstone River valley Montana State Library mailing address

PO Box 201800

Helena MT 59620-1800 406-444-5354 406-444-5354 Montana Relay 711 406-444-0266 geoinfo@mt.gov geoinfo@mt.gov Downloadable Data 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. ESRI Personal Geodatabase https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Collections/Yellowstone_River_Clearinghouse/Geodatabases/yell_hist_banks.zip 20131115 20130417 20090615 20060125 DTM Consulting, Inc. Tony Thatcher mailing and physical address

211 N Grand Suite J

Bozeman MT 59715 406-585-5322 tony@dtmgis.com FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 {C0C9520B-3964-4C0D-8901-C5677610D754}