- This event has passed.
San Bruno Mountain: Dairy Ravine-Cable Ravine
October 20, 2018 @ 10:00 am - 1:00 pm$6
These two north-facing ravines form most of the area above the parking lot opposite the park entrance. Their names allude to dairy ranching and to cables that descend from the communication towers on the summit. The two ravines share similar plant communities that are dotted with eucalyptus plantings threatening endangered butterfly habitat. To explore both ravines we’ll walk the Eucalyptus Loop to the Dairy Ravine and Summit Trails ascending to the mountain’s summit. Then it’s on to Kamchatka Point to see four species in Ericaceae, the Heather family featuring three species that are endemic to San Bruno Mountain. The first two are San Bruno Mountain manzanita (Arctostaphylos imbricata) and a pretty form of bearberry manzanita (A. uva-ursi forma suborbiculata). We’ll see California huckleberry (Vaccinium ovatum), and a pending new endemic species, San Bruno Mountain huckleberry (V. brunoense). Due to the marine influence the mountain offers box-of-chocolates weather so bring layers. Heavy rain cancels.