Big Sand Bar Rapids is a stretch of rapids in Mohave County, Arizona, in the Mojave Basin and Range region. It lies about 7.8 miles southeast of Boulder City and roughly 17.1 miles southeast of Henderson as the crow flies.
The Mojave Basin and Range is hot desert of creosote bush flats, dry lake beds and rocky mountain ranges. Waterfalls are rare and mostly seasonal or spring-fed, hidden in canyons.
There are 33 recorded rapids in Mohave County. Cross Current Rapids, is under a mile away across the state line in Nevada. Horseshoe Rapids, is under a mile away across the state line in Nevada. Cranes Nest Rapids, is about 1.3 miles away across the state line in Nevada.
Big Sand Bar Rapids is located at 35.9286° N, 114.7080° 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.