Fallingwater = Frank Lloyd Wright used Nature and Japenese influences to build the house partly over a natural waterfall on Bear Run in rural Pennsylvania.
In-situ methods became increasingly important<span> because only about 20% of the </span>Athabasca oil sands<span> were shallow enough to recover by surface mining, and the SAGD method in particular was very efficient at recovering large amounts of bitumen at a reasonable cost. i hope this helps</span>
