Senita Basin-Red Tanks

Managing agency

Organ Pipe National Monument

Senita Basin-Red Tanks is a 4.1-mile out-and-back trail located in Organ Pipe National Monument near Arizona. This moderate desert hike gains 150 feet of elevation as it traverses the Sonoran Desert landscape. The trail takes hikers through the Senita Basin area, home to rare senita cacti found only in a limited range within the United States. The route leads to Red Tanks, natural rock basins that collect water and support desert wildlife. These geological features provide a focal point for the hike and are of particular ecological interest within the monument. Organ Pipe National Monument manages this trail and the surrounding protected lands. The area preserves unique desert vegetation and geological formations characteristic of the lower Colorado River Valley. The relatively modest elevation gain makes this hike accessible to a wider range of fitness levels while still offering scenic desert vistas and botanical interest. Best visited during cooler months when desert temperatures are more manageable, this trail provides an opportunity to explore one of Arizona's most distinctive ecosystems and observe rare plant species found nowhere else in the country.