Sentinel Pass is one of those hikes that changes you. At 2,611 metres, it's the highest point reachable by a maintained trail in the Canadian Rockies, and the views from the narrow pass between Pinnacle Mountain and Mount Temple are nothing short of extraordinary. This is a challenging hike that rewards every step with increasingly dramatic scenery, culminating in a vista that will take your breath away — literally, at this elevation.
Trail Overview
Distance: 11.6 km return from Moraine Lake
Elevation Gain: 725 metres
Difficulty: Strenuous
Time: 5–7 hours round trip
Trailhead: Moraine Lake (shuttle required in peak season)
The trail begins at the Moraine Lake shoreline, climbs through dense subalpine forest, opens into the spectacular Larch Valley, and then ascends steeply via switchbacks to the narrow pass. The final approach involves loose scree and can be snowy well into July.
Stage 1: Moraine Lake to Larch Valley (3.2 km)
The first section climbs steadily through Engelmann spruce and subalpine fir forest with glimpses of the Ten Peaks through the trees. At about 2.4 km, the forest begins to thin and you enter Larch Valley — a high alpine meadow ringed by towering peaks.
If you're visiting in late September, this is where the magic happens. The alpine larch trees (the only conifer that loses its needles) turn brilliant gold, creating one of the most photographed landscapes in the Canadian Rockies. Carpets of golden needles blanket the ground beneath the larches, and the contrast against the grey rock and blue sky is extraordinary.
Stage 2: Larch Valley to Sentinel Pass (2.6 km)
From Larch Valley, the trail steepens considerably as it switchbacks up the headwall toward the pass. The last 500 metres of elevation gain is the most demanding section — steep, loose scree with a well-marked but narrow trail. Take your time and watch your footing.
As you gain elevation, the views behind you expand dramatically. Moraine Lake appears far below, a vivid turquoise jewel surrounded by the Ten Peaks. The Wenkchemna Peaks line up in a row that's almost surreal in its perfection.
The Summit: Sentinel Pass (2,611m)
The pass itself is a narrow saddle between Pinnacle Mountain (to the north) and Mount Temple (to the south). From here, you look down into Paradise Valley on the other side — a vast, green alpine valley with snow-capped peaks in every direction. On clear days, the views seem to stretch forever.
The wind at the pass can be fierce and cold, even in summer. Bring a warm layer and wind protection regardless of the temperature at the trailhead.
When to Hike Sentinel Pass
- July–August: Best conditions, though snow can linger on the final switchbacks into July. Wildflowers in Larch Valley
- Late September: Larch season is the most spectacular time but be prepared for cold temperatures, possible snow, and shorter days
- Early season (June): The pass is typically snow-covered and may require an ice axe and crampons. Not recommended for casual hikers
Getting There
During peak season (June–October), private vehicles cannot access Moraine Lake. You must take the Parks Canada shuttle from the Lake Louise Park & Ride. Book your shuttle reservation at reservation.pc.gc.ca as soon as reservations open (typically April). The earliest shuttle is ideal for this hike to maximize daylight and beat afternoon weather.
Essential Tips
- Start early — this is a full-day hike and afternoon thunderstorms are common in summer
- Carry bear spray and make noise — this is prime grizzly bear habitat, and group travel restrictions (minimum 4 hikers) may be in effect
- Bring layers, a rain jacket, sunscreen, and at least 2 litres of water per person
- Trekking poles are highly recommended for the steep scree sections
- This trail is not suitable for young children or inexperienced hikers
Want a guided experience? Book a guided hiking tour in Banff for expert-led adventures with all the logistics handled.