Taken at Upper Antelope Canyon on 20th June, 2014. The canyon is formed by erosion of sandstone rocks. The sandstone rocks are called Navajo sandstone and they stretch from Wyoming to Northern Arizona and gets its red color due to high concentration of Iron Oxide.
The Upper Antelope Canyon is just a quarter mile and is pretty narrow at a few places, opens downstream at a small sand basin which flows all the way down towards Colorado River. Most of the year the basin is dried up but there are occasional flash floods.
If you plan to travel here, check for weather conditions at Page, AZ to make sure there is no chances of rain. The nearest city is Page, though the lodging can become quite expensive. For food, only McD is open 24 hours. From the entrance of the tribal park, register for tours which leaves every hour. The last tour is at 4PM and it takes an hour and a half to complete the trip.
If arriving from Utah, take 89S and after crossing Glen Canyon Dam, drive a mile down and take a left turn on 98E. Keep driving for 5-10 mins and the parking lot is on the right.
If arriving from from Phoenix, take I-17, switch to 89N at Flagstaff and keep driving till you need to take a detour at 89T (89N till Page is closed as of writing due to road closure). Keep driving on 89T till it meets 98E, take a right and keep driving till you find Antelope Canyon on the right.