Horizons, Inc. 20070601 remote-sensing image Helena, MT Montana State Library http://mslapps.mt.gov/Geographic_Information/Data/Aerial_Photos/yellowstoneflood_col_1997.aspx http://mslapps.mt.gov/Geographic_Information/Data/DataList/datalist_Details.aspx?did={4691733a-ab8a-11e3-9be7-425861b86ab6} Black and White aerial photos of the Yellowstone River floodplain between Reed Point and Custer, Montana. These photos have been georeferenced and rectified, but they have NOT been orthorectified. The photos may be used to see what the area of the photograph looked like in general, but should NOT be used to determine the location of any object that can be seen on the photos. The photos were taken on June 14, 1997, two days after the peak flood stage of 15 feet on the Yellowstone River in Billings. The first set consists of 29 mosaics arranged so that the white no-data areas from adjacent images do not obscure each other. The images have been resampled to a horizontal resolution of 0.4572 meters, or 1.5 feet. The second set of images are 69 individual aerial photos, and their resolutions vary from 0.356 meters to 0.496 meters (14 to 20 inches). These images were created for the Yellowstone River Conservation Districts Council, to support understanding of the Yellowstone River floodplain, including hydraulic floodplain delineation, planimetric data extraction, and as a base map for monitoring long-term river channel changes. 19970614 ground condition Complete As needed -109.64 -107.48 46.16 45.56 ISO 19115 Topic Category imageryBaseMapsEarthCover Ortho Orthophotography Orthoimagery Yellowstone Yellowstone River Yellowstone River Conservation District Council Montana USA None 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 Department of Natural Resources and Conservation mailing address

PO Box 201601

Helena Montana 59620-1601 406-444-4247 jrobinson@mt.gov MrSID image The imagery has not been orthorectified. Horizontal positional errors of greater than 100 meters are common. Horizons, Inc. Unpublished material remote-sensing image 24000 filmstrip 19970614 ground condition The photography was flown at an altitude of 12,000 feet above mean terrain. The camera was a 6" focal length Zeis RMK TOP15, equipped with forward motion compensation and Gryo Mount. The film was Kodak 2405 Black and White film The film was scanned by Z/I Imaging PhotoScan scanning workstations operating under Photoscan (tm) and Autoscan (tm) software. The scanning resolution was 14 microns, or 1813 dots per inch, resulting in an approximate ground resolution of approximately 13 inches. 20060330 Denny Tellinhuisen Horizons, Inc. Sales Representative mailing and physical address

3600 Jet Drive

Rapid City SD 57703 605-343-0280 tellinghuisen@horizonsinc.com The scanned photos were georeferenced and georectified to Montana State Plane Coordinates. The TIFF photo images were compressed to MrSID format using GeoExpress 6.0 from Lizard Tech. 20070531 Montana State Library geoinfo@mt.gov The 69 TIFF photo images were clipped, resampled, mosaicked, and compressed to create 29 non-overlapping images with a horizontal resolution of 18 inches. The imagery for each mosaic image was selected manually. The clipping, resampling, and image compression were performed with GeoExpress 6.0 from Lizard Tech. 20070531 Montana State Library geoinfo@mt.gov raster Pixel State Plane Coordinate System 2500 45.000000 49.000000 -109.500000 44.250000 600000.000000 0.000000 row and column 0.496 0.496 meters North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 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. MrSID image http://mslapps.mt.gov/Geographic_Information/Data/Aerial_Photos/yellowstoneflood_col_1997.aspx 20140106 20130723 20130417 20070531 Montana State Library mailing address

PO Box 201800

Helena MT 59620-1800 406-444-5354 Montana Relay 711 406-444-0266 geoinfo@mt.gov FGDC Content Standards for Digital Geospatial Metadata FGDC-STD-001-1998 {355246B6-81BA-45BC-A8FA-870B7C7CA197}