Date: 11/10/2019

Number: 2100

Carretera Monterrey-Saltillo, 16:15 horas, a la entrada del cañón de la
Huasteca y 8 kilómetros más a una altura promedio de 4 metros 35 mariposas por minuto.

Francisco Mancillas

Courtesy of Correo Real

Editor’s Note: Location is interpreted Parque La Hausteca. We are estimating 2100 monarchs based on observer’s description of “35 butterflies per minute” assuming 1 hour observation and are marking this record as a JN staff estimate.

Santa Catarina, NLE

Latitude: 25.6 Longitude: -100.5

Observed by:
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