You can get very remote in 36. Some areas have big boulder fields, so be cautious with your mules. Eagle county is a top producer of B&C bucks, so it definitely has the genetics, if you can find some. Call Colorado Division of Wildlife (303) 297-1192 and ask to speak with someone who would know about the winter kill in that unit.
When calling coyotes, more often than not they will circle on a target they are
coming into and approach from the downwind side. Presumably they do this in
order to align what they smell, with what they are hearing.
This means that you should always have your downwind side camouflaged and have
an open shooting lane. If the area is heavily covered the coyote could come in
take a look and be gone, with you none the wiser.