Monarch butterfly migration

Monarchs crossing Texas, late September to the third week of October Monarchs bound for their wintering grounds in central Mexico pass through Texas from the end of September through about the third week of October, and in a good year you can see them streaming south or clustering on trees and flowers to rest. The heaviest movement is through the western and central parts of the state rather than East Texas and the coast, so the Hill Country and the land west of Interstate 35 are where to look. South Llano River State Park near Junction is a suggested viewing spot, and farther west, thousands roost in the trees of Amistad National Recreation Area near Del Rio. No reservation or long-haul flight needed, just a sunny afternoon and patience.