The highway travels north along Nason Creek from an intersection with U.S. Route 2 (US 2) at Coles Corner to Chiwawa Loop Road on the eastern shore of Lake Wenatchee.

SR 207 begins at an intersection with US 2 at Coles Corner within Wenatchee National Forest and travels northeast, following Nason Creek upstream.

In 2011, WSDOT calculated that between 2,000 and 2,400 vehicles per day used the highway, mostly at Coles Corner.

[6] A road connecting a Great Northern rail line to Lake Wenatchee was built by 1904,[7] and was designated as part of SSH 15C in 1937, traveling from PSH 15, concurrent with US 10,[8] at Coles Corner to PSH 15 and US 10 in Leavenworth via Lake Wenatchee State Park.

[2][13][14] SR 209 and a 5.99-mile-long (9.64 km) segment of SR 207 from Chiwawa Loop Road to Telma were removed from the state highway system in 1991,[2][4][15] and no major revisions to the highway have occurred since 1991.