Portola Valley and the surrounding heights of the Santa Cruz Mountains define this 2018 survey of the San Francisco Peninsula's southern interior. The terrain is dominated by the NW-SE orientation of the San Andreas Fault, which creates the distinct linear valleys and ridges that separate the bay-side developments of Los Altos Hills and Palo Alto from the higher elevations. Residential clusters like Los Trancos Woods are interspersed with protected lands such as Russian Ridge and Long Ridge, where a network of trails like the Ridge Trail and Canyon Trail provide access to the area’s complex topography. Prominent peaks such as Mindego Hill and Black Mtn overlook numerous gulches and creeks, including the headwaters of the San Lorenzo River and Pescadero Cr, highlighting the region's importance as a watershed for both the Pacific and the Bay.
181 named features on this map. Tap any name to fly to it.
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This is the sole edition of this map. No revisions or reprints were ever made.
1897 · Palo Alto
USGS Topo · 1:62,500
1899 · Palo Alto
USGS Topo · 1:62,500
1902 · Santa Cruz
USGS Topo · 1:125,000
1940 · Halfmoon Bay
USGS Topo · 1:62,500
1940 · Ano Nuevo
USGS Topo · 1:62,500
1941 · Ano Nuevo Pt.
USGS Topo · 1:62,500
1941 · Palo Alto
USGS Topo · 1:62,500
1942 · Ano Nuevo
USGS Topo · 1:62,500
1943 · Palo Alto
USGS Topo · 1:62,500
1943 · Halfmoon Bay
USGS Topo · 1:62,500