Kaiser Quarry Ruins
An abandoned car and strange wooden debris are among the scattered remains of the old sand and gravel quarry.

📜 Historic quarry ruins in Sibley Volcanic Regional Preserve.
🔍 Site of Kaiser Sand and Gravel quarry (1929-1937).

Why Go

🚶 Explore scattered artifacts and industrial debris
🚗 See an abandoned 1971 Opel Sedan
🌲 Hike trails with geological history and views
👻 Discover spookier finds like stacked cow bones

Why Avoid

⚠️ Ruins are off-trail, requires walking

Tips

🅿️ Park at Sibley Volcanic Regional Preserve Main Staging Area.
🗺️ Take western leg of Skyline Trail toward Old Tunnel Road for about one mile.

Last updated 3 days ago

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