An arboretum is a botanical collection composed exclusively of trees of a variety of species. Originally mostly created as a section in a larger garden or park for specimens of mostly non-local species, many modern arboreta are in botanical gardens as living collections of woody plants and is intended at least in part for scientific study.
The ecology of the Sierra Nevada, located in the U.S. states of California and Nevada, is diverse and complex. The combination of climate, topography, moisture, and soils influences the distribution of ecological communities across an elevation gradient from 500 to 14,500 feet. Biotic zones range from scrub and chaparral communities at lower elevations, to subalpine forests and alpine meadows at the higher elevations. Particular ecoregions that follow elevation contours are often described as a series of belts that follow the length of the Sierra Nevada. There are many hiking trails, paved and unpaved roads, and vast public lands in the Sierra Nevada for exploring the many different biomes and ecosystems.
The Bartlett Arboretum and Gardens in Stamford, Connecticut, contains 93 acres of parkland, gardens, landscapes, and hiking trails that focus on the regional plants, ecology and character of Southwestern New England. The Arboretum is open and accessible to the public every day of the year and is located at 151 Brookdale Road.
Highstead, formerly known as Highstead Arboretum, in Redding, Connecticut, United States was founded in 1982. It covers 36 acres of woodland, meadow, and wetland and ranges from 640 feet (200 m) to 758 feet (231 m) in elevation and hosts both native and cultivated plant varieties.
Hidden Lake Gardens colloquially known as Hidden Lake 755 acres (3.06 km2), is a botanical garden and an arboretum operated by Michigan State University situated in the Irish Hills of southeast Michigan. The Gardens are known for their large collection of native and nonnative trees, shrubs and flowers. HLG was given to Michigan State University by Harry Fee in 1945. Today it is visited by nearly 45,000 people annually. One facet of the Hidden Lake Gardens mission is "To preserve an undeveloped area of the scenic Irish Hills, providing a place of beauty and inspiration for public enjoyment."
The Deerfield Beach Arboretum, also known as the Tree Zoo, is an arboretum and botanical garden located in Deerfield Beach, Florida, United States. It covers 9 acres. It is owned by the city of Deerfield Beach and managed by The Friends of the Deerfield Beach Arboretum. It contains more than 200 different species of trees and palms from around the world, with more than 50 different species of flowering trees.
The Mount Pisgah Arboretum is a non-profit arboretum and botanical garden located within the Howard Buford Recreation Area, between the Coast Fork of the Willamette River and the slopes of Mount Pisgah near Eugene-Springfield, Oregon, United States.
Cranberry Glades — also known simply as The Glades — are a cluster of five small, boreal-type bogs in southwestern Pocahontas County, West Virginia, United States. This area, high in the Allegheny Mountains at about 3,400 feet (1,000 m), is protected as the Cranberry Glades Botanical Area, part of the Monongahela National Forest. This site is the headwaters of the Cranberry River, a popular trout stream, and is adjacent to the nearly 50,000-acre (200 km2) Cranberry Wilderness.
Hoyt Arboretum is a public park in Portland, Oregon, which is part of the complex of parks collectively known as Washington Park. The 189-acre (76 ha) arboretum is located atop a ridge in the Tualatin Mountains two miles (3.2 km) west of downtown Portland. Hoyt has 12 miles of hiking trails, two miles of accessible paved trails, and is open free to the public all year. About 350,000 visitors per year visit the arboretum.
The University of Michigan Matthaei Botanical Gardens includes botanical gardens, natural areas with trails, and several research-quality habitats and is part of the organization Matthaei Botanical Gardens and Nichols Arboretum. The conservatory is popular year round. The public entrance is at 1800 North Dixboro Road in Ann Arbor, Michigan. The grounds are open every day, but trails are not maintained in the winter. The conservatory, garden store, and lobby are open 7 days a week. The building complex is only closed on three holidays a year.
The Slide Mountain Wilderness Area is, at 47,500 acres (19,200 ha), the largest tract of state-owned Forest Preserve in New York's Catskill Park, and the largest area under any kind of wilderness area protection between the Adirondacks and the southern Appalachians. It is located in the towns of Shandaken, Denning and Olive in Ulster County.
The University of Wisconsin–Madison Arboretum is a teaching and research facility of the University of Wisconsin–Madison and the site of historic research in ecological restoration. In addition to its 1,260 acres (5 km2) in Madison, Wisconsin, the Arboretum also manages 520 acres (210 ha) of remnant forests and prairies throughout Wisconsin. It was designated a National Historic Landmark in 2021, in recognition for its role as a pioneer in the field of ecological restoration.
The Cornell Botanic Gardens is a botanical garden located adjacent to the Cornell University campus in Ithaca, New York. The Botanic Gardens proper consist of 25 acres (10 ha) of botanical gardens and 150 acres (61 ha) of the F. R. Newman Arboretum. The greater Botanic Gardens includes 40 different nature areas around Cornell and Ithaca, covering 4,300 acres (1,700 ha).
The University of Guelph Arboretum is an arboretum organized by the University of Guelph in Guelph, Ontario. It was formally established in 1970 by the university and aims to conserve biodiversity and connect people with nature through teaching, research, and community outreach. The space is 165 hectares and is open throughout the year.
Adkins Arboretum is a 400-acre native garden and arboretum located within Tuckahoe State Park at 12610 Eveland Road, Ridgely, Maryland. The grounds contain five miles of paths through meadows and native plant gardens on the Eastern Shore of Maryland. Its gardens contain a "living collection" of more than 600 species of native shrubs, trees, wildflowers and grasses, used to promote land stewardship practices in the Chesapeake Bay region.
The Arboretum at Penn State, which contains the H.O. Smith Botanic Gardens, is a new arboretum at The Pennsylvania State University adjacent to its University Park campus in State College, Pennsylvania. It is Penn State's second arboretum, joining the Arboretum at Penn State Behrend, which was created in 2003.
Peaked Mountain is a nature reserve located in Monson, Massachusetts. The property is approximately 2,000 acres (8.1 km2) and is owned by The Trustees of Reservations, a non-profit conservation organization. The principal landowners of its western slope, Leonard and Roslyn Harrington and Richard Elliott, have long permitted the public to hike through their properties to the summit. Concerned about the mountain's future, they sought the assistance of The Trustees of Reservations in developing a long-term strategy for protecting the mountain and securing public access after their lifetimes.
Halcott Mountain is one of the Catskill Mountains of the U.S. state of New York. It is mostly located in Greene County, with some of its lower slopes in Delaware and Ulster counties. Its exact summit elevation has not been officially determined, but the highest contour line on the mountain is 3,520 feet (1,070 m). It is one of the peaks on the divide between the Delaware and Hudson watersheds.
Mountain Lake Wilderness is a U.S. Wilderness Area in the George Washington and Jefferson National Forests. The wilderness area is located next to privately owned Mountain Lake, and consists of 8,314 acres (3,365 ha) in Virginia and 2,721 acres (1,101 ha) in West Virginia.
Central Mountain is a mountain in Columbia County, Sullivan County, and Luzerne County, in Pennsylvania, United States. Its elevation is 2,247 feet (685 m) above sea level. The mountain is part of the Allegheny Front. Rock formations on the mountain include the Pocono Formation and the Duncannon Member of the Catskill Formation. It was historically known as North Mountain, but it was renamed Central Mountain in the late 1800s. The mountain is one of the most important sites on the Columbia County Natural Areas Inventory and it is inhabited by dozens of trees, shrubs, and herbaceous plants. Numerous birds and several amphibians and mammals are also found in the area.
