National Wildlife Refuge System

Scenic Views at Moosehorn National Wildlife Refuge Scenic Views at Moosehorn National Wildlife Refuge Scenic Views at Moosehorn National Wildlife Refuge Scenic Views at Moosehorn National Wildlife Refuge

Moosehorn National Wildlife Refuge


About Moosehorn National Wildlife Refuge


Click on picture to see better resolution of Moosehorn National Wildlife Refuge
Moosehorn National Wildlife Refuge

Moosehorn National Wildlife Refuge, located in Washington County, Maine, (shown in green in the map to the right) was established in 1937 to benefit migratory birds and other wildlife. Moosehorn is an upland, forested area with glaciated terrain. The 22,745 acres of the refuge include 10 natural lakes and many marshes, bogs, beaver flowages, and streams interspersed throughout the mixed forest of conifers and hardwoods. Wildlife is abundant and Moosehorn is renowned for its woodcock.


Refuge Area and Class I Designation

  • In 1975, Congress designated 7,386 acres of Moosehorn National Wildlife Refuge as a wilderness area, declaring that the area should remain undeveloped and "unimpaired" for future generations.
  • In 1977, Congress acknowledged the uniqueness of the Moosehorn Wilderness Area by naming it a Class I air quality area. As a wilderness area it is afforded special protection under the Clean Air Act.
  • Congress gave the Fish and Wildlife Service (FWS), as the Federal Land Manager of the Moosehorn Wilderness Area, the responsibility to protect the air quality and air quality related values (AQRVs) of the area from man-made air pollution. Despite this protection, many sources of man-made air pollution affect Moosehorn NWR including pulp mills and other industry, power plants, and automobiles.
  • The FWS is working cooperatively with industry and the State of Maine to reduce air pollutant emissions and protect the air quality and AQRVs of Moosehorn.
  • If Moosehorn is not protected, unique wildlife and scenic values will be threatened or lost, as has happened in much of the eastern U.S. The FWS hopes to preserve and protect this special area of wilderness for future generations.


Learn more about air quality at Moosehorn


The FWS has begun a program to better understand air pollution causes and effects at Moosehorn, in partnership with the national Interagency Monitoring of Protected Visual Environments (IMPROVE) program. As part of this program, FWS operates a fine particle sampler that measures the pollutants in the air responsible for visibility impairment. In addition, a video camera records visibility conditions. Within this website are the resources to discover why air pollution poses a threat to Moosehorn NWR and what the FWS is doing to prevent the deterioration of air quality in this pristine area.

  • Learn the basics of air quality - Air Quality
  • Understand what are the air quality related values - AQRV
  • Learn about how air quality can affect natural and scenic resources - Impacts
  • Find real time monitoring data and studies being performed at the refuge - Studies & Monitoring



Additional Information:
Regional Air Quality Information (as provided by NPS)
Moosehorn NWR Website
Moosehorn NWR 300km Radius Map (PDF 251KB)

Last updated: November 8, 2012