Hidden Lake Trail

Hidden Lake Trail is a high-alpine out-and-back from Logan Pass Visitor Center to Hidden Lake’s shore. The full route is about 5.4 miles round-trip; the mapped trail runs 2.7 miles to the lake, then returns the same way. Allow three to four hours. The shorter classic walk turns around at Hidden Lake Overlook after about 1.3 miles each way, for roughly 2.6 to 2.8 miles total. That overlook is a satisfying destination on its own. The lake extension adds a steep descent and a steep climb back, so choose it for the longer lakeshore walk rather than treating it as a small extra.

The trail starts behind Logan Pass Visitor Center. A short paved stretch gives way to a boardwalk and stairs climbing through open alpine meadow toward the moraine below Clements Mountain. This is the main uphill approach: you gain height steadily, with rugged peaks and the flower-filled basin opening around you. The boardwalk keeps the route clear across sensitive high-country ground; stay on it instead of cutting across the meadow. At the moraine, the surface changes from boardwalk to dirt.

The dirt path crosses Hidden Pass before reaching the overlook and its interpretive sign. Mountain goats are often seen in this area, though wildlife sightings are never guaranteed. From the overlook the view drops to Hidden Lake, with the Sperry Glacier basin visible beyond the far end. This is the natural decision point: turn back here for the shorter version, or continue down if you are prepared for the more demanding lake route. Take a moment to look back across the meadow and the glacial landforms you have crossed; the route’s changes in height are what make the lake appear so suddenly below.

Past the overlook, the trail descends about 1.2 miles to the lake. This section is described as extremely steep, and the return is the same climb in reverse before you reach the overlook again. The full outing is therefore more strenuous than the boardwalk approach suggests. If steep descents feel uncomfortable, or your group has enough after the views, turn around at the overlook; you still get the lake panorama without committing to the long drop and climb. The full route is an out-and-back, not a loop.

The broad ridge near Clements Mountain is a moraine left by a glacier that once occupied the mountain’s base. The trail crosses that glacial terrain before opening toward Hidden Lake and the surrounding peaks. The view toward Sperry Glacier is a reminder that ice still marks this landscape, while the old moraine shows where it used to reach. Alpine flowers can continue into September and tend to peak in August; snow may linger well into July, with timing shifting from year to year.

Begin behind Logan Pass Visitor Center, reached by Going-to-the-Sun Road. Road access, parking and shuttle arrangements at Logan Pass vary by season, so check current park access and trail conditions before setting out. High-elevation snow and trail conditions can change; do not assume the boardwalk or steep lake leg is clear early in the season. Pets are not permitted on park trails or undeveloped lake shores. Carry water and a snack for the route; food and drinking-water service along the trail could not be confirmed.