It is the source of the central tributary of El Polin Creek ( also called Tennessee Hollow Creek ) .
El Polin Spring is a natural spring in San Francisco , California located in The Presidio .
El Polin Spring is the El Polin Spring of the central tributary of El Polin Creek ( also called Tennessee Hollow Creek ) .
El Polin Spring is a natural spring in San Francisco , California located in The Presidio .