My Mother-in-Law lives in nearby Palisade. She loves Colorado, loves to create meals from cookbooks and loves geocaching.
This cache would have been placed closer to her at the Palisade Branch Library but there is already a great cache honoring the town and that cache is within 0.1 miles of that branch. But shouldn't all libraries be loved and valued and geocached???
Mom passes through Clifton frequently, so it is still a local cache for her. Well, the wonderful librarians at the Mesa County Library have given their approval for the placement of this cache inside this library. With that in mind, access to the cache is available only when the library is open.
Now they have their own library geocache!

To find the cache, focus on a book that is relevant to things that Mom loves.
Book is at ABC.D (clues are found at WP1)
A = # of windows below name of building
B = # of safety poles (#Y + #R) to the left of the entrance
C = # of flag poles
D = # of panes of glass at the entrance, excluding the doors