San Luis Río Colorado Municipality

San Luis Río Colorado is a municipality in the Mexican state of Sonora in northwestern Mexico, covering an area of 8412.75 km2.

The municipality is the location of the city of San Luis Rio Colorado, the community of El Golfo de Santa Clara, and the Bahia Adair biosphere preserve.

Geography
The municipality is in the Lower Colorado River Valley, with the Colorado River along its west, the U.S.-Mexico border along the north, and to the Colorado River Delta on the southwest, and the Gulf of California (Sea of Cortez) along the south.

Adjacent jurisdictions

 * Yuma County, Arizona — north
 * Puerto Peñasco Municipality, Sonora — east
 * Mexicali Municipality and Colorado River, Baja California — west
 * Gulf of California (Sea of Cortes) — south

Populated places
The largest cities, towns, and villages within the municipality include:

Former settlements
Former historical settlements sites within the current municipality, many along the Colorado River that served shipping by steamboats on the Colorado River, include:

History
The first vaccines against the COVID-19 pandemic in Mexico arrived for medical personal on January 13, 2021.

Eleven people were arrested for possession of weapons reserved for the military on March 13, 2021.