Over Snow Vehicle Use Map (OSVUM) — Tahoe National Forest

Over-Snow Vehicle Use Map (OSVUM): where snowmobiles and other over-snow vehicles are allowed, and when. Tahoe National Forest. Public domain map from the USDA Forest Service, republished from https://www.fs.usda.gov/r05/tahoe/maps-guides/over-snow-vehicle-use. When the forest posts a new edition it shows up here as a free update.