Typical costs: First, test to see if the popcorn texture contains asbestos. Wet several spots with water and scrape small samples of the material into resealable plastic baggies, then submit them to a lab. Lab tests typically cost $10-$60, depending on the lab and how long it takes to get the results.
Fort Clatsop. From FortWiki. Fort Clatsop (1805-1806) - This fort was the first military establishment to be built in Oregon. It served Lewis and Clark and the 33-member Corps of Discovery as winter quarters in 1805-06 as seven cabins surrounded by a 50 ft square log stockade.
Fort Rock, Oregon. Fort Rock Oregon 97735. This is a prominent rocky landmark. The rock is an isolated mass, imperfectly crescent-shaped, nearly one-third of a mile across, and its highest point is about 325 feet above the floor of the plain on which it stands. It has perpendicular cliffs 200 feet high in places.