The upper watershed is in the John Muir Wilderness of the Sierra and Inyo National Forests.

From the lake Rock Creek flows northeast to the location known as Tom's Place along U.S. Route 395, less than two miles from the Owens River.

Upstream from Tom's Place, Rock Creek is 15.9 miles (25.6 km) long.

Lower Rock Creek, below Tom's Place, flows an additional 14.1 miles (22.7 km) to the Owens River.

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