The most popular hydro-fluorocarbon (HFC) refrigerants for new commercial air conditioning systems include R-410A, R-407C and R-134a. As a facility manager or owner, itâs important that you understand these different refrigerants so that you can make informed decisions for your facilityâs air conditioning system.
Fall Chinook Salmon, up upriver brights, Spring Chinook Salmon, Coho, Silvers and Columbia River Salmon weighing up to 50 pounds and more migrate their way up the Columbia River every year. choose a Columbia River fishing guide and catch these Columbia River Salmon all year long.. Astoria fishing guides.
David Thompson reached the source of the Columbia at Columbia Lake in present day British Columbia in 1807 and navigated the entire river in 1811. The first American settlement on the Columbia was Astoria, established at its mouth in 1811. Between the Pacific and the great bend near the confluence with the Snake River, the Columbia has represented the dividing line between Oregon and Washington since before Oregon became a state in 1859.