Tarryall Creek is a tributary of the South Platte River, approximately 68.5 miles (110.2 km) long,[2] in Park County in central Colorado in the United States.

It drains a rural portion of north and central South Park, an intermontane grassland in the Rocky Mountains southwest of Denver.

It rises in the high Rockies in several forks along the Continental Divide in the Pike National Forest southwest of Boreas Pass.

The creek's headwaters lie near the Continental Divide in the Pike National Forest in Park County, Colorado.

This wildlife area is located 16.5 miles (26.6 kilometers) southeast of Jefferson, Colorado on Park County Road 77.

[7] Flowing through the Tarryall Reservoir, the creek again passes through the Pike National Forest prior to its confluence with the South Platte.