Reading California's History in Highway Roadcuts

Lookout Mountain obsidian became prized toolstone, traded through Indigenous networks from the eastern Sierra to the Channel Islands.

Supervolcanoes, Hot Springs, Fumaroles, Yellow Lakes, and Other Geologic Wonders of Mammoth Lakes

An 18.6-year lunar cycle is expected to amplify tides just as rising seas push more of California’s coastline toward flooding thresholds.

A threatened population of green sea turtles is thriving in the concrete channels of the San Gabriel River in Long Beach.

Exfoliation helped create Yosemite’s famous rounded granite domes and continues to peel the cliffs apart in massive sheets of rock.

At The Huntington, one of the world’s great succulent collections reveals how plants from some of Earth’s harshest climates evolved to survive, even as many species face threats from plant theft.