the Hoh Rainforest on our vagabonding journey through the Cascadia Subduction Zone. Mountains have been raised along the entire convergent boundary, but the ranges on the Olympic Peninsula are in a class by themselves. They are high enough to support glaciers, which means that Olympic National Park is one of the few parks in the country where one can explore a glacier, a rainforest, lakes, and ocean shorelines. The diversity of the landscape is incredible.
The lake is glacial in origin, filling a hollow where the ice scooped out
softer rock. The lake once drained to the east into Indian
Creek, but a gigantic landslide about 8,000 years ago split the lake
(Lake Sutherland is the other part). As Lake Crescent filled deeper and
deeper, the water spilled over into a different drainage, the Lyre
River, which flows northwest. Isolation of the lake by Lyre Falls has
resulted in the evolution of two subspecies of fish, the Beardslee Trout, and the Crescenti Cutthroat Trout.
last year in this post).
post on the Hoh Rainforest, the snowpack last winter was in the 10% range or less, and the peak runoff was in February. Many of the rivers are getting their main flows from glacial melt rather than snowmelt, and that's not good for the rivers or the glaciers.
shrinking precipitously over the last century, and dozens have melted completely. Rivers that used to flow throughout the year might dry up in the summer or fall as more ice disappears, which will be bad news for aquatic life in those areas.