Marble Canyon

Marble Canyon is a short, spectacular walk just across the provincial border in Kootenay National Park, and it makes a good alternative or companion to the much busier Johnston Canyon. From Castle Junction, Highway 93 South climbs over Vermilion Pass on the Continental Divide into British Columbia, and a few minutes later you reach the Marble Canyon parking area. The trail is less than a kilometre each way, about thirty minutes return, with modest elevation changes. It follows the rim of a deep, narrow canyon carved by Tokumm Creek through pale limestone and dolomite, crossing the gorge repeatedly on bridges that let you look straight down into the churning water far below. In summer the water runs a vivid blue-green; in winter, Parks Canada notes, you look down from the bridges onto smooth rock and impressive ice formations. At the end of the trail, a waterfall pours into the canyon, and a pair of Parks Canada red chairs offers a place to pause. The surrounding forest burned in large wildfires in the early 2000s, and the regrowth of young lodgepole pine and wildflowers is a striking lesson in how fire renews these landscapes. Nearby, the Paint Pots trail leads to iron-rich mineral springs and ochre beds that are culturally significant to Indigenous peoples, and a connecting trail links the two sites along the Vermilion River. In winter, expect icy paths, carry microspikes and remember that British Columbia requires winter tires on Highway 93 South through the cold months.

Why visit. Johnston Canyon gets crowds year-round, while Marble Canyon, a short drive further, is quieter and in some ways more dramatic, because the gorge is narrower and deeper and the bridges place you directly over the drop. It is also a quick way to experience a second national park on a day trip from Banff. Kootenay continues south to Radium Hot Springs, and adventurous travellers can make a longer loop through the valley.

Combining stops. Pair Marble Canyon with the Paint Pots, a short walk away, where red and orange ochre beds surround cold mineral springs; the ochre was traditionally gathered and used by Indigenous peoples for paint, and later mined commercially in the early twentieth century. The Fireweed Loops at the Vermilion Pass trailhead interpret the effects of an earlier 1968 wildfire. Together, these stops make an easy half day from Banff, about forty minutes each way.

Winter practicalities. The trail is not always maintained in winter and can be icy, so wear sturdy boots with traction devices and stay behind the railings. The canyon walls drop sharply, and slipping is the main hazard. There are few services on Highway 93 South; carry water, snacks and warm layers. Check the Kootenay trail conditions report before you go, and watch for wildlife on the highway, especially at dawn and dusk. A Parks Canada pass is required.