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 Frontenac National Historic Site of Canada is an archaeological site located beneath the intersection of Ontario Street and Place DâArmes in Kingston, Ontario. The site extends under four stone buildings, constructed during the 1820s as part of the former TÃªte du Pont Barracks on the southern portion of ground previously occupied by the original French fort.