Olympic Mountains

The Olympic Mountains are a mountain range on the Olympic Peninsula of western Washington in the United States. The mountains, part of the Pacific Coast Ranges. 
The eastern slopes rise out of Puget Sound from sea level and the western slopes are separated from the Pacific Ocean by the low-lying wide Pacific Ocean coastal plain. The western slopes are the wettest place in the contiguous United States (outside Hawaii and Alaska). 
Most of the mountains are protected within the bounds of the Olympic National Park. A large portion of the range is contained within the Olympic National Park. Of this 95% is part of the Olympic Wilderness.