New Mexico’s largest reservoir plunges to just 1.4% full

Filed by Dr. Vera Quark

Elephant Butte Reservoir, New Mexico’s largest reservoir, plunged to just 1.4 percent capacity in July 2026 after years of extreme drought and record early snowmelt. The dramatic decline exposed long-submerged debris and underscored the growing strain on Rio Grande water supplies used by farms in New Mexico and Texas.