Acadia National Park
Acadia National Park is an American national park located along the mid-section of the Maine coast, southwest of Bar Harbor. The park includes about half of Mount Desert Island, part of the Isle au Haut, the tip of the Schoodic Peninsula, and portions of sixteen smaller outlying islands.
Acadia National Park
49,075 acres (198.60 km2)
861.46 acres (348.62 ha; 3.4862 km2) private (in 2017)[1]
July 8, 1916 (as Sieur de Monts National Monument)
February 26, 1919
(as Lafayette National Park)
January 19, 1929
(as Acadia National Park)[2]
2,669,034 (in 2020)[3]
The park contains the tallest mountain on the Atlantic Coast of the United States (Cadillac Mountain), exposed granite domes, glacial erratics, U-shaped valleys, and cobble beaches. Its mountains, lakes, streams, wetlands, forests, meadows, and coastlines contribute to a diversity of plants and animals. Woven into this landscape is a historic carriage road system financed by John D. Rockefeller Jr.[4] In total, it encompasses 49,075 acres (19,860 ha; 76.680 sq mi; 198.60 km2) as of 2017.
Acadia has a rich human history, dating back more than 10,000 years ago with the Wabanaki people. The 17th century brought fur traders and other European explorers, while the 19th century saw an influx of summer visitors, then wealthy families. Many conservation-minded citizens, among them George B. Dorr (the "Father of Acadia National Park"), worked to establish this first U.S. national park east of the Mississippi River and the only one in the Northeastern United States. Acadia was initially designated Sieur de Monts National Monument by proclamation of President Woodrow Wilson in 1916, then renamed and redesignated Lafayette National Park in 1919. The park was renamed Acadia National Park in 1929.
Recreational activities from spring through autumn include car and bus touring along the Park Loop Road; hiking, bicycling, and horseback riding on carriage roads (motor vehicles are prohibited); fishing; rock climbing; kayaking and canoeing on lakes and ponds; swimming at Sand Beach and Echo Lake; sea kayaking and guided boat tours on the ocean; and various ranger-led programs. Winter activities include cross-country skiing, snowshoeing, snowmobiling, and ice fishing. Two campgrounds are located on Mount Desert Island, another campground is on the Schoodic Peninsula, and five lean-to sites are on Isle au Haut. The main visitor center is at Hulls Cove, northwest of Bar Harbor. Park visitation has been steadily increasing in Acadia over the past decade, with 2021 seeing a record count of 4.07 million visitors.[5] In 2023 the park saw 3,879,890 recreational visitors.[6]
Paleontology[edit]
The Presumpscot Formation has yielded a diverse collection of mostly marine fossils. The formation is composed of silt and clay deposited between 15 and 11,000 years ago when isostatic loading raised sea level as land was submerged to about 330–395 ft (101–120 m) above the current level. Post-glacial rebound lowered sea level, exposing the seabed to a depth of about 195 ft (59 m) below the current level. A global rise in sea-level flooded the shelf to the current level.[55]
Plant fossils include pollen, spores, logs, and other plant macrofossils. Invertebrate fossils include foraminifera (protists that form test shells), sponge spicules, bryozoans, bivalves, gastropods, Spirorbis, beetles, ants, barnacles, decapod crustaceans (crabs, shrimp, lobsters, etc.), ostracodes (seed shrimp), and ophiuroids (brittle stars). Vertebrate fossils include fish and a few rare large mammals, such as walruses, whales, and a mammoth. Walrus remains have been reported on Andrews Island, 19 mi (31 km) west of Isle au Haut; Addison Point, 23 mi (37 km) northeast of the Schoodic Peninsula; and Gardiner, 57 mi (92 km) west-northwest of Isle au Haut. The mammoth bones were found at Scarborough, 87 mi (140 km) southwest of Isle au Haut.[55]
Current issues and challenges[edit]
Congestion[edit]
Park attendance increased to 3.53 million in 2018, setting a new record for the second year in a row. The seasonal nature of the park means a concentration of visitors in the summer months that is beyond the capacity of park infrastructure. Congestion leads to lack of available parking and gridlock, requiring road closures. Traffic management places a toll on available rangers, competing with rescue operations that also see a sharp increase on peak attendance days.[85]
The Island Explorer bus system is offered in part to reduce congestion; it has served 7.7 million passengers since it began operations in 1999. A portion of park entrance fees partially funds the service.[86]
Environmental changes[edit]
Since the park's founding in 1916, climate change has lengthened the growing season by nearly two months. A longer growing season threatens native plants and invites invasive species that thrive in the longer, warmer summer season. An expanded warm season also lengthens the tourism season, placing further strain on park resources. Changes in rainfall patterns have also taxed park infrastructure, increasing the maintenance required to control erosion and protect the historic carriage roads.[87]
Deferred maintenance[edit]
Park officials estimated the cost of needed infrastructure maintenance to be $65.8 million in 2019, a $6 million increase from 2018.[88] The National Park Service has an estimated $11 billion in total deferred maintenance across all units, a number which continues to increase. The backlog compounds existing problems in environmental management and traffic congestion, as infrastructure to manage traffic flow cannot be built until existing infrastructure is properly maintained. Trail and wilderness restoration is also deferred due to insufficient funding. Additionally, the large number of park entrances creates issues with fee compliance, costing additional lost revenue.[89]
Facilities and support[edit]
Visitor centers[edit]
Six visitor information centers are located in or near the park, including the main visitor center at Hulls Cove (northwest of Bar Harbor), a nature center at Sieur de Monts (south of Bar Harbor), an information center on Thompson Island (along the roadway to Mount Desert Island), another information center at Village Green in Bar Harbor, a historical museum in Islesford on Little Cranberry Island, and the Rockefeller Welcome Center on the Schoodic Peninsula. The Rockefeller Welcome Center is the only one open throughout the year, though it is closed on winter weekends; the others are all closed in winter.[81]