East Canyon Creek is a 40.5-mile-long (65.2 km)[2] north by northwest-flowing stream that begins northwest of Kimball Junction in Summit County, Utah, on the east side of the summit of the Wasatch Range, and flows to its confluence with the Weber River in Morgan County, Utah.

East Canyon Creek is one of four major tributaries of the Weber River, which in turn, flows to the Great Salt Lake.

[4] The total East Canyon Creek watershed drains 245 square miles (630 km2) of the eastern slope of the Wasatch Range.

[3] The portion above East Canyon Reservoir drains 145 square miles (380 km2) that includes Park City, Utah and several major ski resorts near its headwaters.

[6] Note the Geographic Names Information System (GNIS) likely needs to be corrected to be consistent with the U.S. Geological Survey report and map.