Mountain Cranberry / Vaccinium vitis-idaea

Photographed this plant at Bragg Creek Natural Area, east of the Kananaskis boundary.

"Mountain Cranberry is a small evergreen shrub in the flowering plant family Ericaceae that bears edible fruit. It is native to boreal forest and Arctic tundra throughout the Northern Hemisphere from Eurasia to North America. It is seldom cultivated, but fruit is commonly collected in the wild."

en.wikipedia.org/wiki/Vaccinium_vitis-idaea