Cowlitz County Historical Museum
Explore exhibits about the Cowlitz people, regional settlement and the industries that shaped the lower Columbia area.
Published regular hours are Tuesday–Saturday 10 AM–4 PM; closed Sunday and Monday. Holiday exceptions were not verified, including Veterans Day and Thanksgiving. Confirm directly for holiday travel; the regular-hours review ends November 25.
Admission is free. This guide currently offers one focused museum visit at Kelso, so check that it is open before choosing this stop.
Source checked 2026-11-06. Times are planning allowances.