Active Water Rights of Montana. The data consists of estimated locations of all the active recorded points of diversion and points of use in the water rights database. There are four separate spatial layers: Points of diversion, Points of Use, Points of Reservoirs, and Points of Use for Irrigation (a subset of Points of Use). The version of this data available at the State Library is updated on a weekly basis. For administrative purposes, the original version of all active water rights is given (i.e. Version ID = 1). If change of information about a particular water right has occurred over time, there will be an additional version of the water right, and depending on how many changes, there will only be one other version number (greater [...]
