Irrigated Lands - Wind/Bighorn River Basins (2010)

This dataset contains the irrigated lands mapped for the Wind/Bighorn River Basin Plan. Irrigated lands were divided into the following categories: Irrigated Lands, Sub-irrigated Lands, and Water Awards. All previously unmapped areas were assigned to either Irrigated Lands or Sub-Irrigated Lands based on the visual interpretation of Digital Ortho Quarter Quadrangles (DOQQs) and 1999 Landsat color-infrared satellite imagery. Identified lands were then transposed onto USGS 1:24,000-scale, 7.5 Minute Quadrangle maps, attributed with water rights, digitized and placed into an ArcView 3.2a shapefile. Verification of irrigated versus sub-irrigated lands occurred during the assignment of water right attributes. Previously mapped lands - obtained from the Wyoming State Engineer's Office - were then incorporated into the irrigated lands shapefile and assigned to the appropriate category based on existing attributes. NOTE- This dataset does not include Water Awards.