It is a haven for geology lovers as water and erosion has exposed millions of years of deposited sedimentary rock. Recreationists of all kinds are awed by its natural sculptures: rock formations, canyons, mesas and gorges.
As this infographic shows, a child who spends time exploring nature is more likely to be thin and fit, get better grades in school, and have fewer emotional problems than couch potato counterparts.
Earth Day is a day for reflection about our role on this planet. The Earth keeps giving year-round, and you can too with these tips on actions you can take to contribute to the wild lands that you love:
This year, National Parks Week is April 20th through 28th. As part of that, you can visit any National park for free from Monday, April 22 through Friday, April 26.
