Are you looking for day hiking trails or long-term backpacking routes? If you are an adventurous soul, the Wonderland Trail forms a massive 93-mile loop around Mount Rainier (see
The Wonderland Trail - Mount Rainier National Park (U.S. National Park Service)). With respect to Olympic National Park, "Hurricane Ridge is the most easily accessed mountain area within Olympic National Park. . . . Hurricane Ridge has a number of hiking trails, from ridgetop traverses to steep trails that descend to subalpine lakes and valleys. Obstruction Point Road (weather and snow permitting, open from July 4 through October 15), branches off right before the Hurricane Ridge Visitor Center, and provides access to a variety of trails as well" (
Visiting Hurricane Ridge - Olympic National Park (U.S. National Park Service)). Olympic is the one national park in which you can go from temperate rain forest to snowcapped, heavily glaciated peaks in a comparatively short distance (see
Getting Around - Olympic National Park (U.S. National Park Service)).
As for the Smokies and Appalachians in general, give them their due. Erosion has taken a heavy toll over the course of more than 200 million years but some geologists believe that they rivaled the Andes in their heyday. How do we know this? The following data pertain specifically to West Virginia:
"In the absence of volcanic action or geology-deforming tectonism, coals buried in a normal geothermal gradient will achieve bituminous rank at burial depths ranging between 8,500 and 20,000 feet. As coal beds are buried deeper the volatile matter and moisture gets cooked away, leaving behind the fixed carbon. Very deep burial, and/or volcanic/tectonic activity, produce anthracite coals. Low-vol bituminous coals result when burial depths approach 15,000- 20,000 feet. These coals are valuable as coking coals used in steel-making. High-vol bituminous coals are formed at shallower depths-- 8,500 to 15,000 feet. These are used mostly for producing steam for electrical generation, as are the sub-bituminous and lignite coals which are found in other regions of the U.S.
. . . . The generally flat-lying bituminous coal beds which are layer-caked throughout the West Virginia coalfields were each in their turn deposited near sea level, depressed thousands of feet by accumulating sediments, and today rest at elevations ranging from 0 to 3,000 feet.
By virtue of the "coal-rank thermometer" we know this region was elevated 15,000 to 23,000 feet by the end of the Alleghenian Orogeny. Erosion was contemporaneous, though the precise rates are uncertain, resulting in
probable maximum actual elevations of between 10,000 and 18,000 feet. This physiographic Tibet known as the Allegheny Plateau was upthrust 250 million years ago from the great wedge of deltaic sediments deposited during the earlier Devonian and Carboniferous geologic periods" (
Appalachian origins revealed through the "coal-rank thermometer").