The Tonahutu Creek Trail, in the general area of Grand Lake, Colorado, in both Grand and Larimer counties, was listed on the National Register of Historic Places in 2008.

The trail runs from very close to Grand Lake roughly along Tonahutu Creek to Flattop Mountain, in the west side of Rocky Mountain National Park.

Its significant built features (paraphrasing the NRHP document) include dry rock walls, log footbridge/ford combinations, bogwalks, log and rock water bars and drains, the Harbison Ditch, and abandoned cabins in Big Meadows.

The trail reflects landscape architecture design by National Park Service architects.

This article about a property in Colorado on the National Register of Historic Places is a stub.