Museums include the Museum of the Oregon Territory and the End of the Oregon Trail Interpretive Center, with costumed "living history" guides. The Clackamas County Historical Society archives, housed in the Museum of the Oregon Territory, also include the incorporation plat for the city of San Francisco. Clackamas Heritage Partners owns and operates these museums, along with the Stevens Crawford Museum. In 2009, Clackamas Heritage Partners announced that it could no longer afford to keep the museums open. The End of the Oregon Trail Interpretive Center was closed to the public indefinitely in September 2009; the Stevens Crawford Museum and Museum of the Oregon Territory, staffed largely by volunteers, continued to operate on a limited schedule.