The radar station and adjacent shelter.
Sierra Azul Open Space Preserve

A sacred site and a Cold War relic

Beacon and observation deck at the summit of Mt. Diablo
Mt. Diablo State Park

What goes down, must hike up

Joseph D. Grant Ranch County Park

Grass, water, and diablo dust

Marshlands of Silicon Valley
Sunnyvale Baylands County Park

Strolling the dry marshes of Silicon Valley

An unbelievably blue sky
Almaden Quicksilver County Park

Quicksilver under an azure sky

Looking towars Half Moon Bay.
Montara Mountain State Park

Hot, steadily uphill, and well worth the ocean view

Goats at Deer Hollow Farm.
Ranchero San Antonio County Park

Livestock and wildlife

Pinnacles NP, looking towards Machete Ridge
Pinnacles National Park

Caves and friends among the Pinnacles

Windswept hillside at Fremont Older.
Fremont Older Open Space Preserve

Fewer trees and more bikes on a sunny Sunday