This trail begins at Mile 6 of the White Pass & Yukon Route, where the USFS has renovated a White Pass & Yukon Route caboose into the Denver Caboose, a rental cabin of sorts. The trailheads up the east fork of Skagway River for 2 miles, then swings south and continues another 1½ miles up the glacial outwash to Denver Glacier. Most of the trail is overgrown with brush, and the second half is particularly tough hiking.