Parking
The north approach is reported near the Highway 1/93 junction, just after the bridge, with parking by a gate or at a lower pullout about 200 m away. Current access and legal parking could not be confirmed; verify before setting out.

Banff National Park, AB
A long forest climb to Lower Twin Lake from the highway.
Overview
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.
See the Banff audio tourRecorded for this area
Castle Junction Bridge Viewpoint“You're coming up on Castle Junction Bridge Viewpoint, a quick stop for the Bow River beneath Castle Mountain. Allow ten or fifteen minutes if you want a mountain view without a hike.”
Plays on the road 0.6 km from the trailhead in the Parkwolf Banff Tour Guide.
More stories near here in the app
Trail guide
This is an out-and-back from the Highway 1/93 junction to the Lower Twin Lake shore, about 17 km (10.6 mi) round trip. Plan roughly 5.5 to 7 hours for a long forest climb of about 600 m. It is the north approach; the route from Vista Lake via Arnica Lake is a separate hike.
The route leaves the highway access, crosses Altrude Creek on a bridge, and climbs through forest to the lakes below Storm Mountain. Most of the ascent has limited views; the trees open only in places near the lakes, where Storm Mountain appears above the forest. The mapped line follows the Lower Twin Lake shore path and ends there; it does not include the separate Upper Twin Lake trail.
The reported north trailhead is near the highway junction, just after the bridge. Older directions describe parking by a gate or using a lower pullout roughly 200 m away, but current access and legal parking have not been confirmed; verify them before setting out. Snow can cover the tread and signs, making the wooded route harder to follow. Dogs must remain leashed in Banff where permitted, but this trail’s specific dog status was not established, so check before bringing one.
Wildlife
123 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
69 sightingsMooseMost seen around 8 PMSighting map
466 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
ModerateSmith Lake Trail3.2 km · 1.5 hr · 0.3 km awayA short forest climb to a tucked-away lake and ridge view.
EasyCopper Lake Trail1.4 km · 30 min · 0.4 km awayA short forest path to clear water and a mountain backdrop.
ModerateSilverton Falls Trail1.8 km · 40 min · 1.4 km awayA quick climb to a waterfall tucked into a narrow rock gorge.
ChallengingRockbound Lake Trail17 km · 6.5 hr · 1.4 km awayTwo lakes and Castle Mountain cliffs reward a long alpine climb.
ModerateCastle Lookout Trail7.4 km · 3.5 hr · 4.4 km awayA steady climb to a vanished fire lookout above the Bow Valley
ModerateInk Pots Trail11.4 km · 4.5 hr · 5.4 km awayBlue-green pools in an open meadow after a long forest climb.
ChallengingLuellen Lake Trail34.2 km · 12 hr · 5.4 km awayA long forest and meadow walk ends at a lake beneath cliffs.
EasyBoom Lake Trail10.2 km · 3.5 hr · 6.5 km awayA long forest approach reaches a rocky alpine lake beneath cliffs.
Scenic pullout · 0.6 km awayCastle Junction Bridge ViewpointA quick bridge stop for Bow River and Castle Mountain views.
Sight · 1.3 km awayCastle Cliffs LookoutA short platform brings Castle Mountain's cliffs close.
Campground · 1.7 km awayCastle Mountain CampgroundA wooded, no-service base along the Bow Valley Parkway.
Sight · 2.1 km awaySilverton FallsShort waterfall spur with an exposed, rocky finish.
Sight · 2.2 km awayStorm Mountain LookoutA Bow River picnic break with a ridgeline to read.
Campground · 6.7 km awayJohnston Canyon CampgroundCamp near Johnston Canyon, with train noise to consider.
Sight · 6.8 km awayJohnston CanyonRailed catwalks lead to waterfalls in this steep, narrow canyon.
Sight · 7.9 km awayInk PotsCold blue-green springs reward the long walk beyond the waterfalls.Parkwolf’s Banff ranking