In reply to tjekel:
On my one and only trip there, with the same quandary, we ended up spending an hour or so in the local Borders bookstore in Boulder transcribing route descriptions and topos onto the back of some receipts. It was 2001; I’m sure you could get away with a smartphone photo nowadays.
We also came across a helpful outdoor store in Laramie that let us borrow their ‘out-of-print’ behind the counter guidebook in order to take some photocopies in a print shop next door.