"We are dedicated to collecting and preserving the history, heritage, and culture of east Benton County. Through our exhibits and programs we share our area's rich history and its broader connections to southeastern Washington and the Pacific Northwest."

Of special interest to flintknappers, the East Benton County History Museum contains the arrowhead collection of the late Jay Perry.   Many of Jay's arrowheads wre collected along the Columbia River and particularly the site of what is now Sacajawea State Park.