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.
A flood in 1864 destroyed the military post, Camp Collins, located near the river at La Porte. The military relocated the camp and renamed it Fort Collins. Although no fort was ever built, the current city of Fort Collins was established and continues to battle the periodic flooding of the Cache La Poudre.