Harrison Hill (622m)[1] is a small mountain located at the confluence of the Harrison and Fraser Rivers in the Lower Mainland region of British Columbia, Canada.
The Indian Reserves of the Scowlitz First Nation are at the western end of Harrison Bay and at its outlet at its eastern end, while the reserve of the Chehalis First Nation is along its north shore, and Kilby is on its east shore.
Harrison Knob and Harrison Hill are important in regional archaeology as the site of a number of surviving Coast Salish mound or "pyramid" cemeteries.
Built of earth and stone and called the Scowlitz Mounds, also the Fraser Valley Pyramids, the structures date from 1000 to 1500 BP.
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