Myth: The cover shot of The Rolling Stones - High Tide and Green Grass Big Hits Volume 1 was shot in some idyllic English garden. At least that's what I always thought growing up.
Franklin Canyon is pretty much at the geographic center of Los Angeles. Other noteworthy uses include the opening credits of The Andy Griffith Show and the hitchhiking scene in 'It Happened One Night'
Here's a link to the Wikipedia Page
Franklin Canyon Park
The photo session sourced a few Rolling Stones picture sleeves from the era as well.