Wyoming isn't on the map yet. The State Engineer's surface-water diversion points aren't published in a machine-readable public form; only a groundwater copy about 18 months old is public.
State Engineer and Board of Control
Wyoming's State Engineer's Office and Board of Control oversee the appropriation, distribution and beneficial use of the state's water under prior appropriation. Water rights are applied for, changed and adjudicated through the State Engineer, and its e-Permit database is the place to look up a right's official record.
Why Wyoming isn't on the map yet
The State Engineer's surface water points of diversion aren't published in a machine-readable public form. The only public copy covers groundwater and is about 18 months old, so a map built from it would show half the picture.