The Salmon Glacier is a glacier located 25 km north of Stewart, British Columbia, and Hyder, Alaska, just on the Canadian side of the border. The glacier, one of hundreds in the Boundary Ranges, is notable for its major potential as a natural hazard. Summit Lake is located at the northern end of the glacier and every year around mid-July the lake breaks an ice-dam and then flows under the Salmon Glacier into the Salmon River. This causes the river to rise approximately 1.2–1.5 m for several days.(Wikipedia)