Yellowstone County water rights

12,032 rights recorded with the state of Montana · 121 without a priority date

Open Yellowstone County on the map
Groundwater
10,122
Surface water
1,910

Streams and named sources

Each source page lists its rights in priority order, which is the order water is shared out in a shortage.

Every right in the county, most senior first

Priority date · senior to junior

  • Before 1880
  • 1880–1899
  • 1900–1919
  • 1920–1949
  • 1950–1972
  • 1973–1999
  • 2000 and later
  • No priority date