Date: 10/12/2015

Number: 10000

Natural Bridges, Santa Cruz, CA Overwintering grounds:

The park's Monarch Grove provides a temporary home for up to 100,000 Monarchs. From late fall into winter, the Monarchs form a "city in the trees." The area's mild seaside climate and eucalyptus grove provide a safe place for monarchs to roost until spring.

The monarchs typically begin arriving in mid-October and have left by mid-February.

Editor's note: We do not have an exact date of the first roosting monarchs however, it was reported by KSBW News on October 12 that monarchs are roosting here presently.

Santa Cruz, CA

Latitude: 37.1 Longitude: -122.2

Observed by:
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