Monarch Migration Map Live 2024 Map. To determine monarch migration routes, and weather influence and survival during monarch migrations, monarch watch launched a tagging program to mark individual monarchs. This year has seen folks heading outdoors en masse to see the dramatic displays of the wonders of nature.

In the fall, monarch butterflies in eastern north america travel up to 3,000 miles to reach mexico. The recolonization in 2013 was numerically the lowest and latest in the first sighting record and it foretold the overwintering number.