DTM Consulting, Inc. 20100116 vector digital data Helena, MT Montana State Library https://ftpgeoinfo.msl.mt.gov/Data/Spatial/NonMSDI/Collections/Yellowstone_River_Clearinghouse/Geodatabases/Yellowstone_Inundation_07.zip https://mslservices.mt.gov/Geographic_Information/Data/DataList/datalist_Details.aspx?did={17daa910-aba0-11e3-a5e2-0800200c9a66} Preliminary, approximate 100-year flood boundary as defined by the inundation model. Some areas of the floodplain are designated as being potentially protected (cut off) from flooding by structures such as highways, railroads, and levees. The inundation polygons illustrate the approximate area of inundation during the peak of a 100-year flood event. This boundary can be used as a tool to guide floodplain development. It is not intended to be used for the development of flood insurance rates. 20070416 publication date Complete -110.980867 -103.927431 48.115762 44.907724 ISO 19115 Topic Category inlandWaters geoscientificInformation boundaries inundation flood floodplain Yellowstone River Montana Yellowstone River Park County Sweet Grass County Stillwater County Carbon County Yellowstone County Treasure County Rosebud County Custer County Prairie County Dawson County Richland County Gardiner Livingston Big Timber Columbus Laurel Billings Hysham Forsyth Miles City Terry Glendive Sidney None This is a preliminary dataset created with the best base elevation data available at the time of modeling. Should better elevation data become available, these data may change. 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. DTM Consulting, Inc. mailing and physical address

211 N Grand Ave, Suite J

Bozeman MT 59715 406-585-5322 DTM Consulting, Inc. Microsoft Windows XP Version 5.1 (Build 2600) Service Pack 2; ESRI ArcCatalog 9.2.0.1324 Polygons were drawn around the outermost extent of the inundation model rasters. Deviations from the model were made where personal knowledge or other geographic data superceded the model results. 20070416 DTM Consulting, Inc. mailing and physical address

211 N Grand Ave, Suite J

Bozeman MT 59715 406-585-5322 Vector G-polygon 14 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 0.100000 Explicit elevation coordinate included with horizontal coordinates Inund_Polys_032907 OBJECTID Internal feature number. Shape Feature geometry. ESRI CUTOFF Y or N designates whether or not this area of the floodplain that are potentially protected from flooding by structures such as highways, railroads, and levees. Shape_Length Length of feature in meters Shape_Area Area of feature in square meters Source Portion of inundation model used for delineation. 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/Yellowstone_Inundation_07.zip 20131115 20130417 20110707 20070416 DTM Consulting, Inc. mailing and physical address

211 N Grand Ave, Suite J

Bozeman MT 59715 406-585-5322 FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 {1cc87592-e354-48fd-b151-ff9eca359ab2}