Forks, Washington is located 50 miles south of Port Angeles and 100 miles north of Aberdeen on Coastal Hwy 101. The Coast Hwy 101 runs south all the way to San Francisco.
As you will discover the Hoh Rain Forest, Rialto Beach, Sol Duc Falls and the Cape Flattery Lookout all require driving off of Hwy 101 and returning to Hwy 101 on the same route. Hence Forks is the Hub and center of all the Scenic Attractions of the Western half of the Olympic National Park.
It generally takes 3 or more days to properly visit this area.