The Sierra Nevada is a mountain range in the Western United States, between the Central Valley of California and the Great Basin. The vast majority of the range lies in the state of California, although the Carson Range spur lies primarily in Nevada. The Sierra Nevada is part of the American Cordillera, an almost continuous chain of mountain ranges that forms the western "backbone" of the Americas.
Madera County, officially the County of Madera, is a county at the geographic center of the U.S. state of California. As of the 2020 census, the population was 156,255. The county seat is Madera.
The Ansel Adams Wilderness is a wilderness area in the Sierra Nevada of California, United States. The wilderness spans 231,533 acres (93,698 ha); 33.9% of the territory lies in the Inyo National Forest, 65.8% is in the Sierra National Forest, and the remaining 0.3% covers nearly all of Devils Postpile National Monument. Yosemite National Park lies to the north and northwest, while the John Muir Wilderness lies to the south.
Kings Canyon National Park is an American national park in the southern Sierra Nevada, in Fresno and Tulare Counties, California. Originally established in 1890 as General Grant National Park, the park was greatly expanded and renamed on March 4, 1940. The park's namesake, Kings Canyon, is a rugged glacier-carved valley more than a mile (1,600 m) deep. Other natural features include multiple 14,000-foot (4,300 m) peaks, high mountain meadows, swift-flowing rivers, and some of the world's largest stands of giant sequoia trees. Kings Canyon is north of and contiguous with Sequoia National Park, and both parks are jointly administered by the National Park Service as the Sequoia and Kings Canyon National Parks.
Devils Postpile National Monument is a U.S. National Monument located near Mammoth Mountain in Eastern California. The monument protects Devils Postpile, an unusual rock formation of columnar basalt, “all closely and perfectly fitted together like a vast mosaic.” The monument encompasses 798 acres (323 ha) and includes two main attractions: the Devils Postpile formation and Rainbow Falls, a waterfall on the Middle Fork of the San Joaquin River. In addition, the John Muir Trail and Pacific Crest Trail merge into one trail as they pass through the monument. Excluding a small developed area containing the monument headquarters, visitor center and a campground, the National Monument lies within the borders of the Ansel Adams Wilderness.
Tioga Pass is a mountain pass in the Sierra Nevada mountain range of California. State Route 120 runs through it, and serves as the eastern entry point for Yosemite National Park, at the Tioga Pass Entrance Station. It is the highest elevation highway pass in California and in the Sierra Nevada at an elevation of 9,945 ft (3,031 m). Mount Dana is to the east of the pass, and Gaylor Peak to the west.
Sierra National Forest is a U.S. national forest located on the western slope of central Sierra Nevada in Central California and bounded on the northwest by Yosemite National Park and the south by Kings Canyon National Park. The forest is known for its mountain scenery and beautiful lakes. Forest headquarters are located in Clovis, California. There are local ranger district offices in North Fork and Prather.
The Minarets are a series of jagged peaks located in the Ritter Range, a sub-range of the Sierra Nevada in the state of California. They are easily viewed from Minaret Summit, which is accessible by auto. Collectively, they form an arête, and are a prominent feature in the Ansel Adams Wilderness which was known as the Minaret Wilderness until it was renamed in honor of Ansel Adams in 1984.
The State Scenic Highway System in the U.S. state of California is a list of highways, mainly state highways, that have been designated by the California Department of Transportation (Caltrans) as scenic highways. They are marked by the state flower, a California poppy, inside either a rectangle for state-maintained highways or a pentagon for county highways.
State Route 190 is a state highway in the U.S. state of California that is split into two parts by the Sierra Nevada. The western portion begins at Tipton at a junction with State Route 99 and heads east towards Porterville before ending at Quaking Aspen in the Sequoia National Forest. The eastern portion begins at US 395 at Olancha, heads east through Death Valley National Park, and ends at State Route 127 at Death Valley Junction. The 43.0-mile (69.2 km) portion over the Sierra Nevada remains unconstructed, and the California Department of Transportation (Caltrans) has no plans to build it through the wilderness areas. SR 190 is a National Scenic Byway known as the Death Valley Scenic Byway.
State Route 203 is a state highway in the U.S. state of California that serves as a spur route from U.S. Route 395 in Mono County to the town of Mammoth Lakes and Minaret Summit. Within Mammoth Lakes, State Route 203 is known as both "Minaret Road" and "Main Street." It connects to Lake Mary and the Mammoth Scenic Loop via secondary roads.
Thousand Island Lake is a large alpine lake in the Sierra Nevada, within the Ansel Adams Wilderness in eastern Madera County, California.
The Ritter Range is a small mountain range within California's Sierra Nevada. Most of the mountain range lies within the Ansel Adams Wilderness.
Jennie Lakes Wilderness is a protected area in the Sierra Nevada, in Tulare County, California. It is located 60 miles (97 km) east of Fresno and managed by the US Forest Service. Jennie Lakes Wilderness is about nine square miles within the Sequoia National Forest, that was established by the California Wilderness Act of 1984, and added to the National Wilderness Preservation System.
The California Wilderness Act of 1984 is a federal law, passed by the United States Congress on September 28, 1984, that authorized the addition of over 3 million acres (12,000 km2) within the state of California to the National Wilderness Preservation System. Conservation activist George Whitmore later credited the Act with establishing "the longest stretch of de facto wilderness in the lower 48 states."
Minaret Lake is a lake in the Ritter Range, a subrange of the Sierra Nevada, in California. It is located in extreme northeastern Madera County, within the Ansel Adams Wilderness of the Inyo National Forest.
Iron Mountain is an 11,149-foot-elevation (3,398 meter) summit located in the Sierra Nevada mountain range in Madera County of northern California, United States. It is situated in the Ansel Adams Wilderness, on the boundary shared by Inyo National Forest with Sierra National Forest. It is set at the south end of the Ritter Range, approximately 10 miles (16 km) west of the community of Mammoth Lakes. Devils Postpile National Monument is 4.5 miles to the east and the Minarets are three miles to the north. Precipitation runoff from the west side of this mountain drains to North Fork San Joaquin River, and from the east slope to the Middle Fork San Joaquin. Topographic relief is significant as the east aspect rises over 2,000 feet above Anona Lake in approximately one mile. There are climbing routes to the summit via the south slope and east face, and inclusion on the Sierra Peaks Section peakbagging list generates climbing interest.
Volcanic Ridge is an 11,486-foot-elevation (3,501 meter) ridge located in the Sierra Nevada mountain range in Madera County of northern California, United States. It is situated in the Ansel Adams Wilderness on land managed by Inyo National Forest. It is set in the Ritter Range, 1.9 miles (3.1 km) southeast of Mount Ritter, and approximately 10 miles (16 km) west of the community of Mammoth Lakes. The Minarets are one mile to the west and Devils Postpile National Monument is five miles to the southeast. Topographic relief is significant as the west aspect rises over 1,700 feet above Iceberg Lake in approximately one-half mile.
The Trans-Sierra Highway was a potential highway project proposed to traverse the Sierra Nevada, connecting the Central Valley of California to regions eastward. The concept, which emerged in the 1920s, was ultimately never realized due to significant resistance from environmental conservationists and local communities.
SR 203 
