U.S. 12 runs from Walla Walla to Clarkston, the main route through the southern part of the Palouse. From Lewiston, Idaho, across the Snake River from Clarkston, U.S. 195 runs north through the Palouse to Spokane.
Contact the Dayton Chamber of Commerce, 166 E. Main St., Dayton, WA 99328 (tel. 800/882-6299 or 509/382-4825; www.historicdayton.com). Contact the Pullman Chamber of Commerce, 415 N. Grand Ave., Pullman, WA 99163 (tel. 800/365-6948 or 509/334-3565; www.pullmanchamber.com). Check out www.palousescenicbyway.com.