Geology in Idaho

Some 46,000 years ago, a volcanic eruption led to a flooding event that carved this short canyon with steep vertical walls.

The "Grand Canyon of Southwestern Idaho" makes a spectacular gash across the flat Snake River plain.

Two geologically young and nearly circular volcanic subsidence craters, each about a half-mile in diameter, abruptly break the nearly featureless Snake River Plain.

Natural rock water slides hidden in the remote forests of northern Idaho.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

These black pillars of volcanic basalt seem to call mountain climbers with an unbreakable siren song.

A wild west land agreement was etched right onto this historic Idaho stone.

Home to the deepest rift anywhere on Earth.