Replying to Backcountry jumps at breck/copper/vail?

alright so this may sound like an extremely retarded question (and i think it is), but I'm visiting the breck/copper/vail area over christmas breck winter, and im wondering if there are any good spots for some backcountry jumps (or if there are certain spots where there almost always is one). i know theyre sick for learning new stuff into pow so im just wondering how I might be able to find/build some since ive never been out to CO before. thanks guys.