Trailhead: Boundary Lake is located near the Columbia Icefields, 109kms south of the Jasper townsite and approximately 110kms north of Lake Louise. This is an unmarked unofficial trail. Park on the south side of the Icefields Parkway at the Banff Jasper National Park boundary marker. Parking lot located approximately 13kms east of the Ice Fields visitor Centre. Banff National Park.
Description: From the west end of the parking lot, find the trail that leads down and across the meadow. Follow the old Jasper highway gravel road east for a short distance. Look for a well worn trail on your right located approximately 400ms from where you started.
Follow this trail as it winds it way up through an old growth pine and spruce forest until you reach Boundary Lake. Boundary Lake is a beautiful turquoise blue colour created from silt off the Boundary Glacier. Views from the lakeshore towards the Northeast Face of Mount Athabasca and the Boundary Glacier are stunning.
I’m not sure if the lake holds any large fish but I did see 6 to 8″ size fish when crossing the outflow stream. Once you cross the outflow stream near the trail on the east side of the lake you can continue on up to the Boundary Glacier and Mount Athabasca or the ridge you viewed from the parking lot.
Climbers use this route when climbing the Northeast Face of Mount Athabasca. Views leading up to the Boundary Glacier and back towards Boundary Lake are unforgettable and well worth the effort. Do not climb up the glacier unless you have mountaineering experience and the proper mountaineering gear. You are in bear country