Re "Proposal for Canyonlands monument draws fire" (Tribune, Nov. 14.):
As a National Park Service ranger at Canyonlands and Arches national parks, I had difficulty explaining the two parks' arbitrary boundaries, since much of the surrounding area is also world-class.
Canyonlands' boundaries bisect watersheds, viewsheds and natural geographic boundaries. It makes sense to protect the basins of the Colorado and Green rivers.