Discovery Peak is a peak in the Diablo Range

Diablo Range

The Diablo Range is a mountain range in the California Coast Ranges subdivision of the Pacific Coast Ranges. It is located in the eastern San Francisco Bay area south to the Salinas Valley area of northern California, the United States.-Geography:...

 of California

California

California is a state located on the West Coast of the United States. It is by far the most populous U.S. state, and the third-largest by land area...

 and is the highest point in Alameda County

Alameda County, California

Alameda County is a county in the U.S. state of California. It occupies most of the East Bay region of the San Francisco Bay Area. As of the 2010 census it had a population of 1,510,271, making it the 7th most populous county in the state...

. The officially unnamed peak is also known as Valpe Ridge–Rose Flat due to its location near Rose Flat.
The area is high enough to receive occasional snowfall during the winter, which generally melts within a few days of falling.
Although it is on private property, the Ohlone Wilderness Trail comes to within about 1 miles (1.6 km) of the summit.

History

Discovery Peak was named in 1991 after it was "discovered" by highpointer

Highpointing

Highpointing is the sport of visiting the point with the highest elevation withinsome area , for example the highest points in each county within a state...

 Dinesh Desai while studying a topo map. Field work by Gordon MacLeod and others supports Desai's conclusion,
but this is in conflict with numerous official county documents that list nearby Rose Peak as the highest point.