The Southwest Regional Gap Analysis Project
(SWReGAP) is an update of the Gap Analysis Program’s
mapping and assessment of biodiversity for the five-state
region encompassing Arizona, Colorado, Nevada, New Mexico, and
Utah. It is a multi-institutional cooperative effort
coordinated by the U.S. Geological Survey Gap Analysis
Program. The primary objective of the update is to use a
coordinated mapping approach to create detailed, seamless GIS
maps of land cover, all native terrestrial vertebrate species,
land stewardship, and management status, and to analyze this
information to identify those biotic elements that are
underrepresented on lands managed for their long term
conservation or are “gaps.”
