Katmai National Park & Preserve · Alaska

Ukak River Trail

0.8 mi of trail, end to end · 550 ft of descent · 730 ft–1,269 ft · native surface · trail class Moderately Developed · hiking · seasonal: Winter seasonal closure

Visitor centers

Along the way VR-OVL Three Forks Valley of 10,000 Smokes Overlook Building

Trailheads Ukak Falls Trailhead 726 ft Drive there · Ukak River Trailhead 1,274 ft Drive there

On the parks map

Other trails from the same trailheads

Ukak Falls Trail · 0.8 mi · from Ukak Falls Trailhead
Confluence Trail · 0.6 mi · from Ukak Falls Trailhead
Three Forks Foot Trail · from Ukak River Trailhead

All 24 trails in Katmai National Park & Preserve Find a trail On the parks map Park on nps.gov

About this trail's facts

The lines are the National Park Service's public trails layer, the trailheads and the waterfalls, views, peaks and historic places along them the Service's public points of interest, read 2026-10-16 and simplified for the map; the length is the line's, end to end. The write-ups are the Service's own "things to do" text, unedited. Heights come from USGS 3DEP through Terrain Tiles on AWS (Mapzen/Tilezen), read along each line and rounded; a short trail on steep ground can be off by a few tens of feet. Closures change: check the park's own site before you go.