• Views from Penobscot Mountain summit.


    National Park Maine

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  • Trail Closures: Peregrine Falcon Nesting

    Precipice Cliff, Valley Cove, and Jordan Cliff areas are closed to all public entry until further notice for peregrine falcon nesting season. More »

  • Cultural Connections programs rescheduled for 7/16/2014 due to weather

    Ash Log Pounding demo will take place today 11 am-3 pm at the Abbe Museum downtown (26 Mount Desert St, Bar Harbor). The Burnurwurbskek Singers have been rescheduled to perform on Cadillac Summit next Wed, July 23 at 11 am.

  • Trail Closure: Gorge Path weekdays, 7 am - 4 pm

    The section of the Gorge Path between the Hemlock Path intersection and the A. Murray Young Trail intersection is closed until rehabilitation work is completed. The closure will be in effect Mondays through Fridays only, from 7 am to 4 pm.

Laws & Policies

Enabling Legislation and Public Laws




Park rangers enforce a number of federal regulations in the park, including the Code of Federal Regulations, Title 36 (36 CFR), and the United States Code, Titles 16, 18, and 21.

Within 36 CFR, park superintendents are granted the right to make park-specific regulations to maintain public health and safety, protect environmental or scenic values, protect natural and cultural resources, aid in scientific research, provide for equitable use of facilities, and avoid conflict among visitor use activities. These park-specific regulations are found in the Superintendent's Compendium. Included below is a partial list of park regulations.


Accidents must be reported to park rangers if property damage or personal injury are involved.


Alcohol Use/Possession
The following areas are closed to the consumption of alcoholic beverages, and/or to the possession of a bottle, can, or other receptacle containing an alcoholic beverage that is open, or has been opened, or whose seal has been broken or the contents of which have been partially removed:

  • All public buildlings and facilities, excluding the area served by the Jordan Pond House Restaurant and staff housing
  • Parking lots and pull-outs
  • Sand Beach
  • Echo Lake Beach
  • Lake Wood shoreline
  • Along the shoreline within 0.25 mile (0.4 km) of the cliff and swimming area known as "Tyson Camp," "Ranger Camp," or "the Cliffs", located on the southeast end of Long Pond.

It is illegal to be in the park when under the influence of alcohol or controlled substances. The possession of alcoholic beverages by a minor (less than 21 years old) is prohibited.

All motorized vehicles are prohibited on park trails and carriage roads. All-terrain vehicles are not allowed anywhere in the park.

Camping is permitted only in designated campsites at Blackwoods, Seawall, and Duck Harbor (Isle au Haut) Campgrounds. For complete camping regulations, click here.


Feeding Wildlife
Feeding wildlife is prohibited. This includes gulls and any roadside begging animals. All stored foods must be in a hard-sided locker or vehicle, or kept in such a manner as to be inaccessible to foraging animals.


Contained charcoal and wood fires are allowed only in campgrounds and designated picnic areas in park-provided receptacles or private grills.

Dead wood on the ground may be collected for use as fuel for campfires within the park, provided that wood is not collected from within the campgrounds (except from park-provided wood piles) and chainsaws are not used to gather wood.


Firearms in National Parks
The law governing possession of firearms inside a national park changed on February 22, 2010.

Visitors may possess firearms within a national park unit provided they comply with federal, state, and local laws.

The role of the responsible gun owner is to know and obey the federal, state, and local laws appropriate to the park they are visiting.

Please remember that federal law prohibits firearms in certain park facilities and buildings. These places are marked with signs at public entrances.

For regulations on firearms in Acadia National Park, please read: Maine Firearm Laws

For more information visit: www.nps.gov/nero/firearms/

The possession or use of fireworks or firecrackers is prohibited.

Fishing is permitted in accordance with State of Maine laws. For more information, see Fishing.

The use of horses and other pack animals is permitted on the certain trails, routes, and roads in the park. For more information, see Horseback Riding.

Hours of Operation
The park is open 24 hours a day. However, Bass Harbor Head Lighthouse closes to visitors and motor vehicles at dark, while Carroll Homestead, Lake Wood, and Thompson Island Picnic Area are closed to motor vehicles at dark.

Hunting and trapping are prohibited.

In-Line Skating
Roller skates, rollerblades, roller skis, skateboards, and any other coasting devices are permitted on roads closed to automobiles.

Island Closures
A number of islands in the park are closed at certain times of the year to protect nesting bird species. For more information, see Boating.

Parking is limited to specific areasin the park. For more information, click here.

Pets must be leashed (six feet or less) or otherwise physically restrained at all times. For more information, click here.

Permits are required for activities such as scientific research and collecting, commercial photography/filming, commercial tours and activities, etc. Please see the Superintendent's Compendiumfor a complete list of activities and events that require a permit.

Public Property/Natural and Cultural Features
The possession, injury, destruction, removal, or disturbance of park property or natural resources, including animals, plants, minerals, cultural, and archaeological objects is prohibited. This includes collecting rocks, cobbles, plants, marine organisms, other natural materials, and historic objects and artifacts.

RVs/Load, Weight, and Size Limits
RVs are permitted in the park, but some areas are not accessible due to low bridge heights or limited turnaround space. For more information, see Vehicle Restrictions.

Seat Belts
Federal law requires that seat belts are worn when driving or riding as a passenger in a national park.

Snowmobiles are permitted in certain areas of the park.

Did You Know?

From atop Cadillac Mountain, the sun is just starting to rise over the Porcupine Islands.

Cadillac Mountain in Acadia National Park is the tallest mountain along the eastern coast of the United States. During certain times of the year, it is the first place in the U.S. to see sunrise.