Napa County

Places in this region

Calistoga Petrified Forest

The fossilized remains of ancient California redwoods

The same turbulent forces that heat the waters of Calistoga's famous hot springs and geysers once turned a forest to stone. 3.5 million years ago an ancient volcano knocked down and buried a... »

Geological Oddities, Extraordinary Flora, Disaster Areas, Purveyors of Curiosities | Edited by Annetta, mschlock and others

Monticello Dam Morning Glory Spillway

The largest drain hole in the world

Located at the Monticello Dam at Lake Berryessa in Northern California, this gigantic drain acts as the lake's spillway. Technically known as the Morning Glory Spillway it is locally, somewhat... »

Watery Wonders, Strange Science, Peculiar Fountains, Optical Oddities | Edited by Jehuty, Annetta and others

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