Near Boulder City in Clark County, Nevada — The American Mountains (Southwest)
Lake Mead Reservoir
Photographed by Tom Bosse, July 20, 2024
1. Lake Mead Reservoir Marker
Lake Mead began filling in 1935 while Hoover Dam was under construction. It is the largest man-made reservoir in the United States and is approximately 112 miles long with 247 square miles of surface and a depth of approximately 500 feet when at full pool. The white ring encircling the reservoir is a result of mineral deposits that accumulated when the rock walls were beneath the water. The visible ring is a result of lowering water levels due to droughts from full pool to where this photo was taken in 2016.
Caption Hoover Dam from Arizona Side. Image credit: Bureau of Reclamation, Photographer: Alexander Stephens
Topics. This historical marker is listed in these topic lists: Man-Made Features • Parks & Recreational Areas • Waterways & Vessels. A significant historical year for this entry is 1935.
Location. 35° 59.667′ N, 114° 47.914′ W. Marker is near Boulder City, Nevada, in Clark County. It is on Purple Heart Highway (Interstate 11), on the right when traveling north. The marker is located at the Robert L. Mendenhall Scenic Overlook. Touch for map. Marker is in this post office area: Boulder City NV 89005,
this page online
Regionally, this marker is in Nevada’s Colorado River Valley, in the Mojave Desert, and in Greater Las Vegas. It is also in the American Southwest and in the Mountain West. Globally, it is in North America, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once New Spain and also Mexicos Alta California.
Other nearby markers. At least 8 other markers are within walking distance of this marker: Lake Mead National Recreation Area (within shouting distance of this marker); The Colorado River (within shouting distance of this marker); Dam Completion (within shouting distance of this marker); Boulder City (within shouting distance of this marker); Origin of the Dam (within shouting distance of this marker); Tunnel Construction (within shouting distance of this marker); Boulder Dam! No! (within shouting distance of this marker); Robert L. Mendenhall Scenic Overlook Obelisk (within shouting distance of this marker). Touch for a list and map of all markers in Boulder City.
Also see . . . Lake Mead. Wikipedia
Photographed by Tom Bosse, July 20, 2024
2. Lake Mead Reservoir Marker
Marker located on the right.
Photographed by Tom Bosse, July 20, 2024
3. Lake Mead Reservoir as seen from Interstate 11
Credits. This page was last revised on November 15, 2025. It was originally submitted on August 16, 2024, by Tom Bosse of Jefferson City, Tennessee. This page has been viewed 200 times since then and 33 times this year. Photos: 1, 2, 3. submitted on August 16, 2024, by Tom Bosse of Jefferson City, Tennessee. • Andrew Ruppenstein was the editor who published this page.
