This American auto trail follows the route of the Inland Empire Highway from Walla Walla to Wallula, Washington, on the … Continue reading American Auto Trail-Inland Empire Highway (Walla Walla to Wallula WA)
This travel route begins at Paterson on the Columbia River, crossing up and over the Horse Heaven Hills to Prosser … Continue reading American Auto Trail-Horse Heaven Hills (Paterson to Prosser WA)
This travel route explores the Lewis & Clark Highway auto trail along the Columbia River in Washington State. The route … Continue reading American Auto Trail-Lewis & Clark Highway (Roosevelt to Paterson WA)
The travel route begins in the town of Mosier and travels eastward along U.S. Highway 30 through the gorge of … Continue reading American Auto Trail-Columbia River Highway (Mosier to The Dalles, OR)
This travel route explores Washington State Route 14, the Lewis and Clark Highway, east from Biggs Junction to Roosevelt. The … Continue reading American Auto Trail-Lewis & Clark Trail (Biggs Junction OR to Roosevelt WA)
Historic Highway Guides 