Several important public land areas in the Inland Northwest are entirely missing from OSM:

• Idaho Panhandle National Forest (jointly administered Coeur d’Alene, St. Joe, and Kaniksu National Forests)
• The portion of Colville National Forest east of the Columbia River
• Salmo-Priest Wilderness

All of these are available from forest service data.

Missing state park boundaries include:

• Mount Spokane State Park (Washington)
• Priest Lake State Park (Idaho)
• Priest Lake State Forest (Idaho; exists only as a point)