8. Longs Peak, Colorado
Don’t let the serene beauty of this mountain fool you – someone dies scaling its upper summits every year.
9. Mist Trail, Half Dome, California
Located in Yosemite National Park, the possibility of lightening striking the cables along the upper trail, to the sleek and steep nature of the path can make this one of the deadliest mountains in the world. You might want to avoid any chance of rain here.