|Contra Costa County, California, U.S.|
|Elevation||1,764 ft (538 m) NAVD 88|
|Topo map||USGS Oakland East|
Round Top is an extinct volcano in the Berkeley Hills, just east of Oakland, California. The peak lies entirely within the bounds of Contra Costa County. In 1936, the area surrounding the peak was established as Round Top Regional Park, one of the first three parks of the East Bay Regional Parks District. The park was renamed Sibley Volcanic Regional Preserve for the second president of the park district (1948 to 1958), Robert Sibley, shortly after his death in 1958.
- "Round Top". Geographic Names Information System. United States Geological Survey. Retrieved 2009-08-16.
- "Sibley Volcanic Regional Preserve". East Bay Regional Parks District. Retrieved 2009-08-16.
- "A Self-guided Tour of Round Top Volcanoes" (PDF). East Bay Regional Parks District. Retrieved 2009-08-16.
- "A Self-guided Tour of Round Top Volcanoes (continued)" (PDF). East Bay Regional Parks District. Retrieved 2009-08-16.
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