Lake Powell is a man-made reservoir on the Colorado river. Located in the United States between Utah and Arizona, Lake Powell is surrounded by magnificent Navajo sandstone canyon walls in bright oranges, reds, and whites. These striking colors contrast beautifully with Lake Powell’s blue-green waters. Lake Powell is a sprawling, winding lake, and is the second largest man-made lake in the United States. The lake was made when Glen Canyon Dam was constructed in the early 1960s, flooding Glen Canyon. The lake, along with Horseshoe Bend and the notable Rainbow Bridge National Monument rock formation, is now part of the Glen Canyon National Recreation Area. Visitors to the lake can tour its waters via boat rental or guided tour. Tour operators and lodging can be found in the nearby town of Page in Arizona.