FindingBrokeback.com provides detailed directions to anyone interested in visiting the filming location for the Rifle Scene:
From Hwy 1 (Trans-Canada Hwy), take Seebe Exit 114A, pass the “Leaving Bow Valley Provincial Park” sign, cross the bridge, and take an immediate right (hairpin) turn, cross the one-lane bridge and proceed to the first gate. Walk approximately 1.1 km through the deserted town of Seebe to another gate, then proceed 0.2 km to the top of the hill, cross the cattle guard (“Texas gate”) and turn left. Pass the two orange posts and then follow the road tracks to the left down to the river. The site is approximately 150 yards to the right (north) of the crest, near the river.
[Alternately, from Buffalo Paddock, turn left (west) onto 1A, proceed 8.8 km, turn left (south) onto 1X, go 2.1 km, turn left at the “Seebe” sign, cross the one-lane bridge, and proceed as above.]