Surreal, awesome, unbelievable, weird? These are just some of the words that come out of your mouth when you view the Devils Postpile. Located in the Eastern Sierras, this formation is one of nature's true masterpieces. Towering 60 feet over the San Joaquin River the postpile looks like a huge cathedral pipe organ built entirely of stone. The postpile is actually composed of thousands of columns of fine-grained, black-colored basalt. 100,000 years ago cooling molten rock contracted, creating perfect cracks. As gravity pulled on the face it created thousands of columns and the postpile was born.