1. Mount McKinley (Denali), Buttress Route
Location: Alaska
Altitude: 20,320 feet
Elevation gain: 13,120 feet
Time required: 15+ days (according to normal ascent schedules and depending on weather)
Denali, or Mount McKinley, holds the first place in our list of 11 most difficult mountains to climb in US. This is the mountain known to all the Americans – it’s the highest point in North America, thus belonging to the 7 summits group (7 highest mountains on seven continents). Be well prepared and well aware of what you’re getting into before even thinking about climbing. 50% of the climbers give up before reaching the top. About 100 people died due to falling, avalanches, high altitude sickness, heart attacks and various accidents. If you believe you’re up for it, we wish you the best of luck, and good weather ( the temperature can get as low as -118.1 degrees in winter).