National Historic Landmark - Hoover Dam

Towering 726 feet above the Colorado River, the Hoover Dam is an engineering marvel. Its namesake, President Herbert Hoover, described the dam as "the greatest engineering work of its character ever attempted by the hand of man."

First conceived in the ...

Death Valley National Park

Death Valley, located within the Mojave Desert, boasts the distinction of being the lowest and hottest spot in the United States. From the Panamint and Armargosa mountain ranges, Death Valley descends to its lowest point, 282 feet below sea level, ...

Sedan Crater

Between 1952 and 1992, the United States tested nearly 1,000 nuclear devices in the desert less than 100 miles from the Las Vegas strip. Referred to as the Nevada Test Site, the area's isolation fit the needs for testing America's ...

Four Corners Monument

Spain, Mexico, the United States, and the Navajo Nation all claimed ownership of the area surrounding the Four Corners monument.

Mexico declared independence from Spain, and held the area for a short time before ceding the area to the United ...

Frenchman Flat

As part of the Nevada Test Site, Frenchman Flat played a vital role in the development and maintenance of the Cold War nuclear arsenal.

Located in the desert sixty-five miles northwest of Las Vegas, the Flat was a test site for ...

Ghost Ranch

Ghost Ranch, a Presbyterian education and retreat center near Abiquiu, New Mexico, received its eerie name from the many legends of ghosts and hangings that permeate the area's history. In the mid 18th Century, the King of Spain gave Pedro ...

Gasbuggy Nuclear Oil Test Site

The Gasbuggy Nuclear Oil Test site is the location of the first jointly sponsored nuclear explosion by government and industry. Located in Carson National Forest in Rio Arriba County, New Mexico, a plaque now marks the site to memorialize the ...

Tierra Amarilla

The natives of Tierra Amarilla, a small ranch community in the Chama River Valley of northern New Mexico, are descended from Pueblo Indians and seventeenth century Spanish colonizers. Though isolated for much of its history, Tierra Amarilla has a long ...

Cumbres and Toltec Narrow Gauge Scenic Railroad

The Cumbres & Toltec Scenic Railroad, which runs from Chama, New Mexico, to Antonito, Colorado, is one of the few remaining narrow gauge railroads in the United States. Built in the early 1880s by the Denver & Rio Grande Railroad, ...

Coal-fired Plant, Page, AZ

Located on the Navajo Indian Reservation near Page, Arizona, the Navajo Generating Station began the production of electricity in 1974 for the regions of Arizona, Nevada, and California.

Fueled by coal from the Peabody Western Coal Company's Kayenta Mine in ...