231 Mile Camp is a small primitive campsite located on the right (north) bank of the Colorado River at mile 231, situated in a section of the Grand Canyon known for challenging whitewater between Diamond Creek and Pearce Ferry.

The camp is positioned just downstream of 231 Mile Rapid (Class 5), making it a useful overnight stop for river runners taking out at Diamond Creek or continuing downstream.

This location is part of the lower Grand Canyon corridor where Lake Mead's influence begins to affect river conditions, resulting in slower current and more leisurely paddling compared to upstream sections.