St Croix Boom Site by Robert Rydeen

A view of the beach at the St Croix River Boom Site. The St. Croix Boom Site is a National Historic Landmark located on the St. Croix River upstream of Stillwater, Minnesota. The site was founded by Stillwater lumber barons, including Isaac Staples, in 1856 after the demise of the original St. Croix Boom Company, which had operated a log boom further upstream near Marine on St. Croix, Minnesota. Staples and others purchased the Boom Company and moved the site downstream. Timber harvested upstream was branded with the logo of the company that had harvested it. The logs were floated down to the boom, where they were sorted by the brands and delivered to the sawmills in Stillwater. The boom company collected a fee of 40 cents per thousand board feet (17 cent/m³) delivered. There is a wayside rest with restrooms and a parking area on top of the bluff with stairs down to a beach at the site.
ref: Wikipedia