I'm going to be going to Colorado for an Elk hunt this fall. We'll be at about 11,000 feet. Cargo's post about temperature adjustments, got me thinking that altitude may be a problem. (I know it will be for me, but I'm referring to the arrow flight).

Does anyone know what effect, if any, that 10,000 feet in elevation will cause on arrow flight? I know that the atmosphere is less dense, therefore less drag, but is it significant. Gravity would even be affected some, but once again, how much?