Craters of the Moon National Monument Professional Review and Guide
"Only in Hawaii will you be able to find a greater number of volcanic basalt formations. At Craters of the Moon, volcanic eruptions ages ago and huge rivers of molten lava gushing out from a rift in the earth have created immense fields of hardened lava, dotted with many thousands of cinder cones and deep crater-like depressions.
The last known eruptions in this area took place over 2,000 years ago. They have left a legacy for all to see. When it was first discovered by explorers, the area was described as a desolate, awful waste. This may be quite true from an agricultural standpoint (even though you will find various shrubs and plants here and there). But the area is not a waste to the human eye, which can, even in these rather eerie surroundings, find a certain beauty in it all. Certainly it is different enough to be called out of this world. This eTrail explains in detail how to tour the park. In addition to a park map the details include driving tours, outdoor recreation, accommodations, campgrounds, dining, and more."