Great advice guys...one thing to add-dont rule out a hit if you cant find blood! last year i took a long quartering away shot on my bull. Gave him some time, and went to search for blood. I didnt find a single drop within 50 feet...in fact, i didnt find any that day...but i also couldnt find the arrow which gave me hope. I ended up finding the bull 75 or 100 yards from the shot using the suggestion above - "where would i go if i was a wounded elk". It turns out the arrow entered just behind the diaphragm, and even though i took out the liver and a lung, the stomach completely sealed the arrow entrance.