Feeling national parky these days, so I'm going to continue on the national park realm.
I had the fantastic opportunity in 2009 to visit several national parks in the southwestern U.S. An opportunity that I will not soon forget and one that I never thought I would have in my existence, and I am forever thankful for the experience! My favorite thing about Zion is that there were so many places and different landforms to explore to and essentially lose yourself.
Overall Zion (and the region) is beautiful, with amazing geology. Zion is located on the western edge of the Colorado Plateau. Where Zion currently is located was once a desert basin. As surrounding mountains eroded, debris was moved downstream in slow moving streams and rivers, which 
deposited the materials (sedimentation). Uplift of the area began about 13 million years ago, with accompanying erosion. Rivers found that their gradients were increased, that they could carry greater loads, and thus greater downcutting and widening occurred, carving out steel cliffs, terraces, and plateaus. Adding to the interesting geology of the are are large NNE-SSW-striking normal faults. These faults have immense vertical displacement and they are the reason why the Colorado Plateau is divided into several blocks. Zion is within the block that is bounded by the Hurricane and Sevier faults.
deposited the materials (sedimentation). Uplift of the area began about 13 million years ago, with accompanying erosion. Rivers found that their gradients were increased, that they could carry greater loads, and thus greater downcutting and widening occurred, carving out steel cliffs, terraces, and plateaus. Adding to the interesting geology of the are are large NNE-SSW-striking normal faults. These faults have immense vertical displacement and they are the reason why the Colorado Plateau is divided into several blocks. Zion is within the block that is bounded by the Hurricane and Sevier faults.
This is only a brief snapshot of the vast geology of the region...to discuss all of it would result probably a semester's worth of geology that I myself only know the basics of. Just looking at the area without knowing the geologic history of the area is spectacular. This has and will probably always remain one of my very favorite national parks that I've ever been too!
There are a number of different ways that people interested in seeing Zion can enjoy it, from camping, to bicycling, to climbing, to hiking, to canyoneering (I wanna do that)--and that's to name only a few--you're pretty much limitless!!
Resources: National Parks Website, Great Outdoor Recreation Pages
