Round Top loop at Sibley Volcanic Regional Preserve

By Robert Ellison. Updated on Saturday, July 31, 2021.

Round Top loop trail in Sibley Volcanic Regional Preserve

Round Top in Sibley Volcanic Regional Preserve

Labyrinth in quarry at  Sibley Volcanic Regional Preserve

Small garter snake at Sibley Volcanic Regional Preserve

Round Top is a remnant of a 10 million year old volcano, tipped over by tectonic activity. It's pretty high at 1,763 feet. Unfortunately the peak is privately owned so you can't go right to the top but there is a 2.5 mile loop around the peak. You get views out to Mount Tam, Mount Diablo and even the Sierras and an occasional glimpse of the bay. The drive up is also spectacular.

Hike Starts at 37.8483327,-122.1986103 (Google Earth).

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(Hike Map)

(Published to the Fediverse as: Round Top loop at Sibley Volcanic Regional Preserve #hike #sibley #roundtop #map #volcano #snake Hike around Round Top Loop (a 10 million year old volcano) at Sibley Volcanic Regional Preserve with views out to Mount Tam, Mount Diablo and even the Sierras )

Map

Hike Profile

2.20 miles, 341 feet total elevation gain (estimated from GPS track).

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