Glen Canyon National Recreation Area, established in 1972, provides a dramatic example of one of nature’s most inspiring settings, combined with a monumentally ambitious human project. In the 1960s the construction of a massive dam flooded Glen Canyon, forming Lake Powell, a recreational playground. Water laps against stunning, multihued cliffs that rise hundreds of feet; narrow channels and tributary canyons twist off in every direction. Lake Powell stretches for more than 185 miles, surrounded by millions of acres of desert incorporated into the Glen Canyon National Recreation Area. The vast, rugged landscapes of Glen Canyon National Recreation Area provide an unparalleled spectrum of diverse land- and water-based recreational opportunities for visitors of wide-ranging interests and abilities. The deep, 15-mile-long, narrow gorge below the dam provides a glimpse of the high canyon walls, ancient rock art, and a vestige of the riparian and beach terrace environments. The vast landscape of Glen Canyon contains rugged water and wind-carved canyons, buttes, mesas, rivers, seeps, springs, and hanging gardens where diverse habitats sustain an array of endemic, rare, and relict plant and animal communities.