10,000 Year Clock | Sierra Diablo Mountain Range
2026
The 10,000 Year Clock — orrery and solar synchronizer
Orrery & Solar Synchronizer
The 10,000 Year Clock — mechanical gears inside the mountain
Inside the Mountain
The 10,000 Year Clock — date display rollers
10,000-Year Calendar
The 10,000 Year Clock — entrance carved into the Sierra Diablo
Sierra Diablo Entrance