Parking
Park at the signed Castle Lookout parking area on the Bow Valley Parkway (Highway 1A), about 5 km west of Castle Junction.

Banff National Park, AB
A steady climb to a fire lookout with wide Bow Valley views.
Overview
Castle Lookout is a moderate out-and-back with a 4.6-mile (7.4-kilometre) round trip from the Castle Lookout trailhead. Parks Canada lists 3.7 kilometres one way, 3 to 4 hours, and 520 metres of elevation gain. It is a steady forested climb on dirt and rocky sections, with switchbacks near the top. Most of the route stays among the trees, so this suits hikers who are happy to earn the view rather than collect one immediately.
Parkwolf’s verdictIs this the hike for you?Map & elevation
Plan your hike

The highest, rockiest slopes around here are a summer buffet for grizzly bears.
Banff Tour Guide
Parkwolf is a GPS audio tour guide for Banff National Park. As you drive, it chimes in with what’s ahead: hidden gems, upcoming stops, history, geology, and wildlife, right through your car’s speakers.
Recorded for this area
Castle Mountain Internment Camp: A Hidden WWI Story“It's a sobering thought, but much of early Banff was built with forced labor. Near here stood the Castle Mountain Internment Camp during World War I.”
Plays on the road 1.2 km from the trailhead in the Parkwolf Banff Tour Guide.
More stories near here in the app
Trail guide
The trail ends at the site of a former fire lookout. Banff built fire towers in the mid-20th century so spotters could find smoke, and the tower is gone now, but the view across the middle Bow Valley remains. As the trees thin, look back through the openings for wider views. At the lookout, include a little of the valley or Castle Mountain's layered cliffs in photos to give the landscape some scale.
Use the signed Castle Lookout parking area on the Bow Valley Parkway (Highway 1A), about 5 kilometres west of Castle Junction. Facilities are limited or absent at the trailhead, and a Parks Canada pass is required. This is bear country: carry bear spray, keep dogs leashed, and manage food carefully.
Wildlife
122 sightingsGrizzly BearMost seen around 6 AMSighting map
150 sightingsBrown BearMost seen around 6 PMSighting map
44 sightingsGray WolfMost seen around 6 AMSighting map
12 sightingsRiver OtterMost seen around 8 PMSighting map
67 sightingsMooseMost seen around 8 PMSighting map
465 sightingsBlack BearMost seen around 9 PMSighting mapSighting maps show where each species has been reported across Banff. Wildlife moves, so no sighting is guaranteed.
Keep exploring
ModerateCastle Lookout7.4 km · 3 hr · At the trailheadShort, steady climb to one of Bow Valley’s best panoramasModerateTaylor Lake13.4 km · 4.5 hr · 3.5 km awayA steady forest climb to a larch-fringed alpine lake beneath Mount BellChallengingO'Brien Lake16.7 km · 6 hr · 3.5 km awayLong out-and-back to a quieter larch-fringed lake beneath Mount Bell
ModerateTower Lake15 km · 5 hr · 4.5 km awayA steady climb to a flower-fringed alpine lake beneath Castle Mountain
EasySilverton Falls Trail1.8 km · 40 min · 4.7 km awayShort, quiet waterfall walk from the Rockbound Lake parking area
ChallengingRockbound Lake17.5 km · 6.5 hr · 4.9 km awayTwo alpine lakes, big Castle Mountain walls, and September larches.
ModerateRockbound Lake and Tower Lake16.7 km · 6.5 hr · 4.9 km awayTwo alpine lakes and big Castle Mountain cliffs on a challenging day
EasyBoom Lake Trail10.3 km · 3.5 hr · 6 km awayBumpy forest trail to a mountain lake beneath Boom Mountain
Sight · 2.2 km awayCastle Mountain LookoutSteep hike to a huge Bow Valley panorama under Castle Mountain
Scenic pullout · 2.4 km awayStorm Mountain LookoutQuiet Bow Valley pullout with river, peaks, and passing trains
Sight · 3.7 km awayRockbound LakeAlpine cirque lake tucked behind Castle Mountain’s cliffs
Sight · 3.8 km awayEisenhower TowerClassic Castle Mountain pinnacle for moderate alpine rock climbs
Sight · 3.8 km awayCastle MountainIconic castle-shaped peak with big roadside and summit views
Scenic pullout · 3.8 km awayCastle Mountain ViewpointQuick stop with big Castle Mountain views from a roadside perch
Lodging · 4.7 km awayCastle Mountain ChaletsQuiet cabins at Castle Junction with kitchens, views, and on-site store
Gas station · 4.7 km awayCastle Mountain Chalets Gas StationRare mid-route fuel and snacks with a Castle Mountain viewParkwolf’s Banff ranking