Reids Peak is located 50 miles (80 km) east of Salt Lake City in the Uinta-Wasatch-Cache National Forest.

Precipitation runoff from this mountain drains north into headwaters of the Weber River.

[2] Topographic relief is significant as the summit rises 2,300 feet (701 meters) above the Weber River in one mile (1.6 km).

Reids Peak is composed of metasedimentary rock of the Mount Watson Formation.

[7] Numerous glacial cycles during the Quaternary Period sculpted the peak and scoured the surrounding land forming many depressions that are now lakes.