New migration maps serve as tools to help big game in West

A new atlas of migration corridors in Arizona, Idaho, Montana, Nevada, Utah and Wyoming published by the U.S. Geological Survey can help elk, mule deer, antelope and other animals by focusing efforts to reduce man-made obstacles along their journeys. The new migration atlas documents 26 migration corridors, 16 migration routes, 25 places where wildlife linger while migrating and nine areas where animals congregate during winter.