Sequoia National Park in the context of "Visalia, California"

The Sierra Nevada (/siˌɛrə nɪˈvædə, -ˈvɑːd-/ see-ERR-ə nih-VA(H)D-ə) 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.

The Sierra runs 400 mi (640 km) north-south, and its width ranges from 50 mi (80 km) to 80 mi (130 km) across east–west. Notable features include the General Sherman Tree, the largest tree in the world by volume; Lake Tahoe, the largest alpine lake in North America; Mount Whitney at 14,505 ft (4,421 m), the highest point in the contiguous United States; and Yosemite Valley sculpted by glaciers from one-hundred-million-year-old granite, containing high waterfalls. The Sierra is home to three national parks, twenty-six wilderness areas, ten national forests, and two national monuments. These areas include Yosemite, Sequoia, and Kings Canyon National Parks, as well as Devils Postpile National Monument.

The General Sherman Tree is a giant sequoia (Sequoiadendron giganteum) tree in the Giant Forest of Sequoia National Park in Tulare County, California. By volume, it is the largest known living single-stem tree on Earth.

Mount Whitney (Paiute: Tumanguya) is a mountain in the Sierra Nevada mountain range of California, and the highest point in the contiguous United States, with an elevation of 14,505 feet (4,421 m). It lies in East–Central California on the boundary between Inyo and Tulare counties, and 84.6 miles (136.2 km) west-northwest of North America's lowest topographic point, Badwater Basin in Death Valley National Park, at 282 ft (86 m) below sea level. The mountain's west slope is in Sequoia National Park and the summit is the southern terminus of the John Muir Trail, which runs 211.9 mi (341.0 km) from Happy Isles in Yosemite Valley. The eastern slopes are in Inyo National Forest in Inyo County. Mount Whitney is ranked 18th by topographic isolation and 81st by prominence on Earth.

Kings Canyon National Park is a national park of the United States 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.

The majority of the 461,901-acre (186,925 ha) park, drained by the Middle and South Forks of the Kings River and many smaller streams, is designated wilderness. Tourist facilities are concentrated in two areas: Grant Grove, home to General Grant (the second largest tree in the world, measured by trunk volume) and Cedar Grove, located in the heart of Kings Canyon. Overnight hiking is required to access most of the park's backcountry, or high country, which for much of the year is covered in deep snow. The combined Pacific Crest Trail/John Muir Trail, a backpacking route, traverses the entire length of the park from north to south.

Fresno (/ˈfrɛz.noʊ/ ; Spanish for 'Ash tree') is a city in the San Joaquin Valley of California, United States. It is the county seat of Fresno County and the largest city in the greater Central Valley region, as well as the most populated city in Central California. It covers about 114.7 square miles (297 km) and had a population of 542,107 as of the 2020 census, making it the fifth-most populous city in California, the most populous inland city in California, and the 34th-most populous city in the nation.

Named for the abundant ash trees lining the San Joaquin River, Fresno was founded in 1872 as a railway station of the Central Pacific Railroad before it was incorporated in 1885. It has since become an economic hub of Fresno County and the San Joaquin Valley, with much of the surrounding areas in the Metropolitan Fresno region predominantly tied to large-scale agricultural production. Fresno is near the geographic center of California, approximately 220 miles (350 km) north of Los Angeles, 170 miles (270 km) south of the state capital, Sacramento, and 185 miles (300 km) southeast of San Francisco. Yosemite National Park is about 60 miles (100 km) to the north, Kings Canyon National Park 60 miles (100 km) to the east, and Sequoia National Park 75 miles (120 km) to the southeast.

The Giant Forest, famed for its giant sequoia trees, is within the United States' Sequoia National Park. This montane forest, situated at over 6,000 ft (1,800 m) above mean sea level in the western Sierra Nevada of California, covers an area of 1,880 acres (7.6 km). The Giant Forest is the most accessible of all giant sequoia groves, as it has over 40 mi (64 km) of hiking trails.

Five of the ten most massive trees on Earth are located within the Giant Forest. The largest of these, the General Sherman Tree, measures 36.5 ft (11.1 m) across the base. The giant sequoia is the world's most massive species of tree and is one of the six species documented to grow to 300 ft (91 m) in height; the others are coast redwood, yellow meranti, Eucalyptus regnans, Douglas fir, and Sitka spruce. It is also among the longest-lived of all trees in the world.

The giant sequoia (Sequoiadendron giganteum) is the world's most massive tree, and arguably the largest living organism on Earth. It is neither the tallest extant species of tree (that distinction belongs to the coast redwood), nor is it the widest (that distinction belongs to the African baobab or the Montezuma cypress), nor is it the longest-lived (that distinction belongs to the Great Basin bristlecone pine). However, with a height of 87 meters (286 ft) or more, a circumference of 34 meters (113 ft) or more, an estimated bole volume of up to 1,490 cubic meters (52,500 cu ft), and a documented lifespan of 3266 years, the giant sequoia is among the tallest, widest, and longest-lived of all organisms on Earth.

Giant sequoias grow in well-defined groves in California mixed evergreen forests, along with other old-growth species such as California incense cedar. Because most of the neighboring trees are also quite large, it can be difficult to appreciate the size of an individual giant sequoia. The largest giant sequoias are as tall as a 26-story building, and the width of their bases can exceed that of a city street. They grow at such a rate as to produce roughly 1.1 cubic meters (40 cu ft) of wood each year, approximately equal to the volume of a 50-foot-tall tree one foot in diameter. This makes them among the fastest growing organisms on Earth, in terms of annual increase in mass.

The John Muir Trail (JMT) is a long-distance trail in the Sierra Nevada mountain range of California, passing through Yosemite, Kings Canyon and Sequoia National Parks. It is named after John Muir, a naturalist.

From the northern terminus at Happy Isles in Yosemite Valley (37°43′54″N 119°33′31″W / 37.7317°N 119.5587°W / 37.7317; -119.5587 (northern terminus)) and the southern terminus located on the summit of Mount Whitney (36°34′43″N 118°17′31″W / 36.5785°N 118.292°W / 36.5785; -118.292 (southern terminus)), the trail's length is 213.7 miles (343.9 km), with a total elevation gain of approximately 47,000 feet (14,000 m). For almost all of its length, the trail is in the High Sierra backcountry and wilderness areas. For about 160 miles (260 km), the trail is coincident with the longer Pacific Crest Trail.