U.S. Route 101
The nearly highway's northern terminus is in Tumwater, Washington: the route remains along the Olympic Peninsula's coastal perimeter west, north, and east; the northernmost point on the highway is in Port Angeles. The southern terminus of US 101 is in Los Angeles at the East Los Angeles Interchange, the world's busiest freeway interchange.
Elk River, Minnesota
Minnesota Highway 101 has its northern terminus at the U.S. 10 / U.S. 169 split in Elk River, and is a major route connecting these highways with Interstate 94, seven miles to the south.