Devil's Kitchen Sinkhole
A phenomenon born from the collapse of underground caverns, the Devil's Sinkhole is not only an astonishing landmark - it is also a great representation of Sedona's geological history. The sinkhole has allowed the layers of rock to be clearly seen with the bottom being at least 300 million years old. However, the collapses are pretty recent - some occurring during the last Ice Age and a couple occurring within the last two centuries. The sinkhole is not fenced off, allowing visitors to peer (carefully!) over the rim. To get there, take Soldier Pass Trail No. 66 which is open daily from 8 to 6.