This field trip is a winter staple so let’s start with an easy walk around the saddle and bog with East Bay and San Francisco views. It features grasslands, mono-cultures of gorse, a eucalyptus forest, the headwaters of Colma Creek, and a rare upland wetland. Several past restoration projects offer vivid examples of success and failure and are worth discussing. The area is rich in plant species and its eastern grasslands share plant species common to the southeast portion of the mountain such as coast iris and purple needle grass. We may see golden violet and silver lupine, the host plants for the endangered Callippe Silverspot and Mission Blue butterflies. The bog is a wetland with sedges, rushes, cow parsnip, willows, and creek dogwood. It may be wet from winter rains so wear appropriate shoes. Bring layers because the saddle may be windy, but the bog is generally sheltered. Bring lunch or snacks and we can eat at the Day Camp between the saddle and the bog. There is a $6 cash fee for park admission payable at the ranger kiosk. Meet in the main lot just past the kiosk. Heavy rain cancels.
For questions, call or text Doug at 415-269-9967 or email [email protected]