Mount San Antonio, commonly known as Mount Baldy, is the highest peak in the San Gabriel Mountains and in Los Angeles County, California. It stands at an elevation of 10,064 feet (3,068 meters). Mount San Antonio is located in the Angeles National Forest, straddling the boundary between Los Angeles and San Bernardino counties.

Lake Tahoe is located on the border of California and Nevada. About two-thirds of the lake is in California, with about one-third extending into Nevada at the north and south ends of the lake, and the entire eastern shore. Since part of South Lake Tahoe extends into Nevada, gaming is legal in South Lake Tahoe.

Sequoia National Park is a national park located in the southern Sierra Nevada mountains in California, United States. It is home to towering sequoia trees, including the General Sherman Tree, which is the largest tree in the world by volume.

Death Valley National Park is a vast desert wilderness located in eastern California, United States. It is one of the largest national parks in the country, covering over 3.4 million acres of rugged mountains, expansive sand dunes, and vast salt flats.

The Mendocino National Forest straddles the eastern spur of the Coastal Mountain Range in northwestern California. Some 65 miles long and 35 miles across, Forest’s federally-owned acres of mountains and canyons offer a variety of recreational opportunities – camping, hiking, backpacking, boating, fishing, hunting, nature study, photography, and off-highway vehicle travel.

One of the largest natural tracts in California, the Sierra National Forest flanks the southern and western edges of Yosemite National Park and Mariposa County, featuring five designated wilderness areas within its expansive boundary. Abundant recreational opportunities earn the Sierra National Forest’s rep as an outdoor lover’s paradise.

Tahoe National Forest includes the 8,587-foot (2,617 m) peak of Sierra Buttes, near Sierra City, which has views of Mount Lassen and Mount Shasta. It includes more than 850,000 acres of public land intermixed with 350,000 acres of private land in a checker board pattern. The Tahoe National Forest is renowned for its rugged beauty, historic sites and exceptional year-round recreation opportunities.

New Melones Lake is a reservoir in the foothills of the Sierra Nevada, located in central California. It is part of the Stanislaus River system, spanning portions of Calaveras and Tuolumne counties. The lake was created by the construction of the New Melones Dam, completed in 1979 by the U.S. Army Corps of Engineers for flood control, water supply, hydroelectric power, and recreation.

The Mojave Desert is a desert in the rain shadow of the southern Sierra Nevada mountains and Transverse Ranges in the Southwestern United States. It occupies a significant portion of Southern California and parts of Utah, Nevada, and Arizona. Named after the Mojave Native Americans it occupies roughly 54,000 square miles in a typical Basin and Range topography.

The Salton Sea is a shallow, landlocked, highly saline endorheic lake in Riverside and Imperial counties at the southern end of the U.S. state of California. It lies on the San Andreas Fault within the Salton Trough, which stretches to the Gulf of California in Mexico. The lake is about 15 by 35 miles (24 by 56 km) at its widest and longest. A 2023 report put the surface area at 318 square miles (823.6 km2).