Mica Peak summits at 5,209-ft above sea level and is the southernmost peak in the Selkirk Range, separating the Palouse from the Spokane Valley. This small portion is the most heavily forested and rugged in the unit, comprised of Spokane County Parks, various timber companies and small private parcels. At 3,432-ft, Big Rock separates the sprawling Spokane Valley on the northern edge to the vast open agricultural land which dominates the lower three-quarters of the unit. The largest portion of this unit represents deer habitat with large rolling hills, cut down the center by Hangman Creek and Rock Creek, cuts, coulees and benches. If this ground is relatively flat, chances are it has been plowed into various ag crop lands and/or grazed with sheep or cattle. Elevations run between 3,000-ft to 2,400-ft consistently.

Wolves have been reported on Mica Peak.