Mount Hill, Northern Boundary Range. On August 12, 1974, while working for the U.S. Geological Survey, I climbed this peak (Boundary Peak 78). I ascended the southeast ridge from the col between it and a smaller peak just across the Canadian border. The ascent of the rounded ridge took an hour and a half and involved mixed 3rd-and 4th-class rock and steep wet snow. There was no evidence of prior climbers in the summit rocks; the International Boundary Commission Reports indicate that this peak was not occupied by the survey party which passed through the area in 1909.