The highway continues through the neighboring city of Dallesport in Klickitat County and terminates at a junction with State Route 14 (SR 14).

The Dallesport–Maryhill section was transferred to SR 14 in 1979, but was not recognized by the American Association of State Highway and Transportation Officials (AASHTO) until 2006.

US 197 and OR 216 travel north and northwest to Tygh Valley, where OR 216 leaves the concurrency and heads east on Sherars Bridge Highway No.

The highway begins a 0.24-mile-long (0.39 km) concurrency with US 30, traveling north over an east–west BNSF rail line to a diamond interchange with I-84.

[8][9] An ODOT survey measuring traffic volume for any average day of the year, expressed in terms of annual average daily traffic (AADT), was conducted in 2011 on US 197 and calculated that the busiest section of the highway in Oregon was on The Dalles Bridge, serving 5,800 vehicles, while the least busiest section of the highway was north of its terminus at US 97, serving 390 vehicles.

The highway continues north for 2.76 miles (4.44 km) past Columbia Gorge Regional Airport to its northern terminus, an intersection with SR 14.

[11] Every year, WSDOT conducts a series of surveys on its highways in the state to measure traffic volume, expressed in terms of AADT.