The Promised Land means different things to different people. To geologists, the site of some of the largest volcanic eruptions in earth's history might fit the bill, and that means Utah is a pretty good place to be.
30 million years ago, more than 5,500 cubic kilometers of magma erupted during a one-week period near a place called Wah Wah Springs. By comparison, this eruption was about 5,000 times larger than the 1980 Mount St. Helens eruption.
Fortunately they are no longer active.
Dinosaurs were already extinct during this time period, but less well known is that 25-30 million years ago, North America was home to rhinos, camels, tortoises and even palm trees. Evidence of the ancient flora and fauna was preserved by volcanic deposits.