Mason Valley WMA Access provides public access to the Walker River and numerous ponds across 17,742 acres in Lyon County, with fishing available from mid-February through September 30 on waters including Hinkson Slough, North Pond, Bass Pond, and Crappie Pond.

The area offers designated camping sites and boat access, though vessels are restricted from mid-February through mid-August on most waters except Hinkson Slough, Bass, Crappie, and North Ponds, with a 5 nautical mile per hour speed limit when permitted.