Festival Rock y Ruedas de Avándaro

The Festival Rock y Ruedas de Avándaro (also known as the Festival de Avándaro or simply Avándaro) was a historic Mexican rock festival held on September 11–12, 1971, on the shores of Lake Avándaro near the Avándaro Golf Club, in a hamlet called Tenantongo, near the town of Valle de Bravo in the central State of Mexico. The festival, organized by brothers Eduardo and Alfonso Lopez Negrete's company Promotora Go, McCann Erickson executive and sports promoter Justino Compean and Telesistema Mexicano producer Luis de Llano Macedo, took place at the height of La Onda and celebrated life, youth, ecology, music, peace and free love, has been compared to the American Woodstock festival for its psychedelic music, counterculture imagery and artwork, and open drug use.

Source: Wikipedia — Festival Rock y Ruedas de Avándaro (CC BY-SA 4.0)