Sinyella Rapids is a stretch of rapids in Coconino County, Arizona, in the Arizona/New Mexico Plateau region. It lies about 36.9 miles northwest of Grand Canyon Village and roughly 72.2 miles southeast of Saint George as the crow flies.
The Arizona/New Mexico Plateau is a high, semi-arid tableland of grassland, sagebrush and pinyon-juniper woodland cut by canyons. Waterfalls occur along canyon streams and are strongest during snowmelt and summer monsoon.
Coconino County holds 56 recorded rapids, and several are close by. Havasu Rapids, is about 2.4 miles away. Upset Rapids, is about 3 miles away. Matkatamiba Rapids, is about 3.3 miles away.
Sinyella Rapids is located at 36.3190° N, 112.7240° W. The listing is based on the USGS Geographic Names Information System, one of the sources compiled by the U.S. Geological Survey in its inventory of waterfalls and rapids of the conterminous United States. The position was verified on aerial imagery. Details on trails, parking and access have not been documented for this rapid yet.