 Harrison Mills is home to the British Columbia Heritage Kilby Museum and Campground.Harrison Bay is the home of the Scowlitz (Scaulits) people, whose main reserve is on the bay's western shore, across from Harrison Mills, and also of the Sts'Ailes or Chehalis people, whose reserve is located on the north side of the bay along the lower Harrison River and around that river's confluence with its tributary, the Chehalis.The Scowlitz and Chehalis peoples once had large and famously-carved longhouse villages, long since destroyed by the encouragement of missionaries .