I ski up in aspen and they are usually pretty chill about building jumps in bounds. Obviously like everyone else was saying, you can't just build them in the middle of the runs (although I have done this and gotten away with it before), but yeah usually I try and build jumps out of the trees somewhere and in a place where there isn't gonna be a shit ton of jerry's in the landing. If this is the case and you have found a secluded spot with a good landing, you should be good to go. Always listen to the ski patrollers tho if they approach you, don't give them shit, that is where things get ugly. Also, don't build a massive fuckin booter unless you want that shit to get taken down. Some friends and I spent a ton of time building two big jumps in taos once and right when we finished putting all the work in, we got busted and were forced to take them down. Really think about risk vs reward when building in bounds, don't spend a ridiculous amount of time sculpting the perfect cheese block reminiscent of a jump out of MAGMA II, that shit will get taken down. So yeah, just be low key and keep the build quick.