Original sentence: Camping in the Clear Creek area is "at large" with two exceptions: No camping is allowed between the trail head at the junction with the North Kaibab Trail and Sumner Creek, and in the Clear Creek drainage from its mouth at the Colorado River upstream to the first major side-canyon entering from the east
Edited sentence: Camping in the Clear Creek area is "at large" with two exceptions: No camping is allowed between the trail head at the junction with the North Kaibab Trail and Sumner Wash, and in the Clear Creek drainage from its mouth at the Colorado River upstream to the first major side-canyon entering from the east