Orenda/SP-26 Historic District, Chopawamsic RDA Camp 3

The Orenda/SP-26 Historic District, Chopawamsic RDA Camp 3, near Triangle, Virginia dates from 1934. It was a Recreational Demonstration Area camp that includes work designed by the National Park Service and built by the Civilian Conservation Corps. Building styles within the district include NPS rustic architecture.

It is located within what would become Prince William Forest Park; it has also been known as Family Camp and Mothers & Tots' Camp.

When listed the historic district had 44 contributing buildings, 4 contributing structures and one contributing site.