Weird tunnel by Hoover Dam? Was messing with the map and found this, anybody know anything about it? Just curious :) : r/vegaslocals
Overview of Lake Mead - Lake Mead National Recreation Area (U.S. National Park Service)
Panoramic Perspective of the Area Adjacent to Las Vegas—Hoover Dam, Lake Mead National Recreation Area; Las Vegas—Hoover Dam, Lake Mead National Recreation Area | Gerald A. Eddy, mapmaker, Union Pacific
Custom Map #1958: Hoover Dam. By: Tyler
The Hoover Dam | The Democratic Travelers
Hoover Reservoir Fishing Map - Ohio Department of Natural ...
1947 - Panoramic Perspective of the Area Adjacent to Hoover Dam and La – Maps of Antiquity
Map of Lake Mead National Recreation Area, Arizona/Nevada