Since traveling to the earth's moon and exploring its landscape is not an option for just about every person in the world, the next best thing may be a trip to central and eastern Idaho to visit the Craters of the Moon National Monument and Preserve.

Comprising a violent past, a stable present, and an uncertain future, Craters of the Moon is a vast ocean of lava flows with scattered islands of cinder cones and native sagebrush. It is thought to have formed during eight major eruptive periods between 15,000 and 2000 years ago.

Until the next eruption, ongoing but subtle changes continue to affect the geology of the 618 square mile area. These environmental factors include gravity, weather, as well as other natural and human caused effects on this volcanic landscape.

More Info: en.wikipedia.org