Sunday: Volunteer day offers rare chance to visit Hawthorns preserve in Portola Valley

Pitch in to help Grassroots Ecology restore habitat at Hawthorns, a Midpeninsula Regional Open Space District preserve, on Sunday, Dec. 15, from 1 to 3 p.m. and learn about the unique ecosystem at this preserve, which currently can be visited only with a docent.

Volunteers will help remove invasive, non-native plants, particularly French broom.

Come prepared for hilly terrain and meet at Triangle Park at the corner of Alpine and Portola roads in Portola Valley.

The event takes place rain or shine. Register at grassrootsecology.org/volunteer.

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