Black Sea | Black Forest | Black Sabbath | The Black Eyed Peas | black | Black | Black Death | The Black Keys | black metal | Bear | black-and-white | Jack Black | Cilla Black | Creature from the Black Lagoon | Ladysmith Black Mambazo | black comedy | The Black Crowes | Pirates of the Caribbean: The Curse of the Black Pearl | Men in Black | Black Canary | Black people | Black Label Society | Black Hills | bear | Black Rebel Motorcycle Club | Black Panther Party | Black Mountains | Black Country | Black Watch | Black Swan |
Tierra began his study and practice in 1968 while living in a commune, Black Bear Ranch, in the Klamath National Forest in northern California.