Lost Falls Professional Guide
Detailed Trail Description from our Guidebook
"Waters from the western slopes of 12,571-foot Mount Dunraven pour into the North Fork of Big Thompson River, and are joined by spillage from Lost Lake. They travel east and flow hidden among dense growth and deadfall, to aptly named Lost Falls. You can enjoy them, and a long hike, on this scenic journey through the northeast corner of Rocky Mountain National Park.
This is a difficult hike, and the best leaps of the falls are hidden behind thick brush and deadfall. For that reason, you may wish to combine it with a backpack and camping trip, along with a hike up to Lost Lake, about 2 miles beyond the falls. There are two trails located at the Dunraven Trailhead: You’ll want to take the North Fork Trail, also known as the Dunraven Trail, heading west. (The other trail heads north to Signal Mountain.)"