



California Poppies bloom across ancient volcanic craters and lava flows come spring. The preserve has touchable rock samples at the visitor center and trails through obsidian-studded hills with sweeping Bay Area views.
Volcanic geology trails
Spring wildflower bloom
Peaceful hilltop views
Dog-friendly hiking
Tips
🪨"naturally occurring obsidian stone" at the trailhead
🌅visit at sunrise or sunset for quietest trails
California Poppies in Bloom




California Poppies bloom across ancient volcanic craters and lava flows come spring. The preserve has touchable rock samples at the visitor center and trails through obsidian-studded hills with sweeping Bay Area views.
Volcanic geology trails
Spring wildflower bloom
Peaceful hilltop views
Dog-friendly hiking
Tips
🪨"naturally occurring obsidian stone" at the trailhead
🌅visit at sunrise or sunset for quietest trails
Make it an outing
Add nearby spots before or after your event