Yes, Grand Falls in Arizona, often referred to as the "Chocolate Falls" due to its muddy waters, is technically taller than Niagara Falls. Grand Falls stands at a height of approximately 185 feet (56 meters), whereas the tallest of the three waterfalls that make up Niagara Falls, the Horseshoe Falls, drops about 167 feet (51 meters). However, while Grand Falls holds the advantage in vertical drop, it is significantly less famous and far more elusive. Located on the Navajo Nation, Grand Falls is a seasonal wonder that only flows during the spring snowmelt or after heavy monsoon rains in the summer; for much of the year, it is a dry, dusty cliffside. In contrast, Niagara Falls is a perennial powerhouse, with a staggering volume of water—about 700,000 gallons per second—flowing over its crest year-round. While Grand Falls offers a more rugged, "off-the-beaten-path" desert experience for those who catch it at the right time in 2026, it cannot compete with the sheer hydraulic scale and constant geological presence of the Niagara River.