Lower Yellowstone River Corridor Color Infrared Digital Orthophotography

and Physical Feature Inventory Data

This imagery is orthophoto mosaics of 1:24,000 scale color infrared aerial photography of a 3 to 4 mile wide corridor of the Lower Yellowstone River from the boundary of Park County to the eastern border of Montana.  This imagery was developed by the Montana Natural Resources Conservation Service (NRCS) to support resource inventory and monitoring, and to aid the planning efforts of the Yellowstone River Conservation District Council. The imagery is provided by county and each county file is comprised of images mosaiced and compressed using an image compression technology called MrSid.  MrSid files can be used in GIS programs like ArcView or viewed with a standalone or browser plug-in available from the link above. The files are quite large, file sizes are listed, as well as links to metadata for each file.  All files are in UTM (zones 12 and 13), NAD 83 coordinates and also provided in Montana Stateplane NAD 83..  The download is a Winzip file containing the SID file, the world file, and the metadata for the particular county.

The physical feature files represent point and linear physical features found along the river during the Physical Feature Inventory.  The shapefiles are provided in two projections (either UTM or MT Stateplane -SPC) for your convenience.

Color IR Photography Data Links						Physical Feature Data - UTM		Physical Feature Data - SPC
County Color IR (UTM)	UTM Zone	UTM IR File Size	Color IR Metadata	County Color IR (Montana State Plane, NAD 83)	StatePlane File Size	Pnt	Line	Pnt	Line
Park	12	NA	NA	NA	NA
Sweetgrass	12	64 mb	Here	Sweetgrass	122.6 mb
Stillwater/Carbon	12	72.8 mb	Here	Stillwater/Carbon	112.0 mb
Yellowstone	12	157.4 mb	Here	Yellowstone	227.8 mb
Treasure	13	55.5 mb	Here	Treasure	88.8 mb
Rosebud	13	74.6 mb	Here	Rosebud	109.7 mb
Custer	13	60.5 mb	Here	Custer	131.9 mb
Prairie	13	57.7 mb	Here	Prairie	108.9 mb
Dawson	13	63.9 mb	Here	Dawson	117.5 mb
Richland	13	51.7 mb	Here	Richland	82.2 mb
McKenzie, ND	13	28.8 mb	Here	McKenzie, ND	40.7 mb