sentences:  The early Spanish settlers described the ridges of the headwaters as without tall trees.The only tall trees were planted recently and include eucalyptus, Monterey pine and Monterey cypress.The area from Montara Mountain north to the Golden Gate represent a unique bio-geographic unit dubbed the "Franciscan Landscape" which is primarily Coastal Scrub dominated by Coyote Brush and also sheltering unique endemic species found nowhere else.