It is at Western Recyclers in Ogden Ut. (30 miles north of Salt Lake City). Remember, I can't verify that it actually is 4140, only relay what is painted on it. They have an oxy/acet rig and will cut it for a nominal fee. Thats how I got my 1 1/4 and 2 1/2 inch diameter bars of high carbon steel (labeled 4140).
BTW, I didn't see you mention a crane to get it off the ground. ;> )