Nevada is a state in the western, mountain west, and southwestern regions of the United States. Nevada is largely desert and semiarid, with much of it located within the Great Basin. Areas south of the Great Basin are located within the Mojave Desert, while Lake Tahoe and the Sierra Nevada lie on the western edge. Approximately 86% of the state's land is owned by various jurisdictions of the
U.S. federal government, both civilian and military.
Nevada is almost entirely within the Basin and Range Province, and is broken up by many north-south mountain ranges. Most of these ranges have endorheic valleys between them, which belies the image portrayed by the term Great Basin.
Much of the northern part of the state is within the Great Basin, a mild desert that experiences hot temperatures in the summer and cold temperatures in the winter. Occasionally, moisture from the Arizona Monsoon will cause summer thunderstorms; Pacific storms may blanket the area with snow. The state's highest recorded temperature was 125 °F (52 °C) in Laughlin (elevation of 605 feet or 184 metres) on June 29, 1994. The coldest recorded temperature was −52 °F (−47 °C) set in San Jacinto in 1972, in the northeastern portion of the state.
The Humboldt River crosses the state from east to west across the northern part of the state, draining into the Humboldt Sink near Lovelock. Several rivers drain from the Sierra Nevada eastward, including the Walker, Truckee, and Carson rivers.
The mountain ranges, some of which have peaks above 13,000 feet (4,000 m), harbor lush forests high above desert plains, creating sky islands for endemic species. The valleys are often no lower in elevation than 3,000 feet (910 m).
The southern third of the state, where the Las Vegas area is situated, is within the Mojave Desert. The area receives less rain in the winter but is closer to the Arizona Monsoon in the summer. The terrain is also lower, mostly below 4,000 feet (1,200 m), creating conditions for hot summer days and cool to chilly winter nights (due to temperature inversion).
Nevada and California have by far the longest diagonal line (in respect to the cardinal directions) as a state boundary at just over 400 miles (640 km). This line begins in Lake Tahoe nearly 4 miles (6.4 km) offshore (in the direction of the boundary), and continues to the Colorado River where the Nevada, California, and Arizona boundaries merge 12 miles (19 km) southwest of the Laughlin Bridge.
The largest mountain range in the southern portion of the state is the Spring Mountain Range, just west of Las Vegas. The state's lowest point is along the Colorado River, south of Laughlin.
Nevada has 172 mountain summits with 2,000 feet (610 m) of prominence. Nevada ranks second in the US, behind Alaska, and ahead of California, Montana, and Washington. This makes Nevada the "Most Mountainous" state in the country, at least by this measure.