Maine mammals

American marten in Maine

Martes americana

Native to Maine S5 Secure in Maine

Not listed as nonindigenous in Maine by USGS NAS; native to its Maine range.

IUCN Red List status

  1. LC
  2. NT
  3. VU
  4. EN
  5. CR
  6. EW
  7. EX

LC – Least Concern

Widespread and abundant; not at risk.

American marten in Maine, by the numbers

Occasional in Maine 47th most recorded of 85 mammals logged in Maine

34 occurrence records
34 with iNaturalist photos
Jun 28, 2026 Last seen in Maine

Records from 2000–2026.

34 total records count every Maine occurrence from GBIF and iNaturalist; the map plots a georeferenced sample of 32; the monthly chart covers the 32 records with a full observation date.

When to look for the American marten in Maine

Most sightings fall in July to September.

32 Maine occurrence records (iNaturalist and GBIF) by month of year, 2000–2026. Shows when the species is recorded, not a guarantee of presence.

Monthly Maine records (table)
MonthRecords
January3
February5
March1
April0
May1
June3
July6
August5
September4
October3
November0
December1

Monthly american marten occurrence records (iNaturalist and GBIF) in Maine, 2000–2026.

Seasonality

Year-round in Maine, with recorded sightings peaking in July–September, with a smaller rise in February.

Occurrence map

Where American marten has been recorded in Maine

32 records mapped · zoom and drag to explore

32 Maine records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Appalachian National Scenic Trail 6
Baxter State Park 2
Donnell Pond Ecological Reserve 2
Nahmakanta Unit Ecological Reserve 1
Acadia National Park 1

Protected places with the most american marten sightings, from the USGS Protected Areas Database plus named mountain ranges, good spots to look, not a full breakdown, so they don't sum to the total.

Where it's recorded in Maine

CountyRecords
Piscataquis County 10
Penobscot County 7
Aroostook County 5
Oxford County 3
Hancock County 3
Franklin County 2
Somerset County 2
Other localities 2

The complete county distribution, spread across 7 Maine counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Maine’s marten records come mostly from the western mountains and the North Woods. Piscataquis County leads with 10, followed by Penobscot with 7 and Aroostook with 5, and Oxford and Franklin add a few more. Together they trace a band of big, mostly unbroken forest that runs from the Mahoosuc and Rangeley country up past Moosehead Lake and into the far north. The Appalachian Trail, which crosses Oxford, Franklin, and Piscataquis on its way to Katahdin, logs the most records of any named site, though that’s only 6.

Every one of the state’s 34 records is an iNaturalist observation, so the file reflects martens that people happened to see and photograph.

Why summer stands out

With so few records, the monthly pattern is thin: July through September hold 15 of the 34, February adds 5, and November has none. Martens hunt all year, so the summer lean more likely tracks people than any change in the animals. Hikers fill the Maine woods in summer, and a marten crossing a trail or a logging road in front of them is the kind of moment that ends up photographed.

Mid-pack and secure

By record count, martens sit 47th of 85 mammals in Maine, a middling place for an animal that spends much of its time up in the canopy or under the snow. The species is native here, and NatureServe ranks it S5, secure, in Maine.

Occurrence data from iNaturalist and GBIF.

American marten in other states

More mammals in Maine in the atlas

Data & sources

The data and visualizations on this page draw on these open sources:

  • GBIFCC-BY 4.0occurrence records behind the range map, elevation, and record counts
  • iNaturalistCC0 / CC-BY / CC-BY-SAobservations, photos, and audio recordings
  • NatureServe ExplorerCC-BYthe state conservation rank
  • IUCN Red Listattributed factthe global conservation status
  • USGS NASpublic domainnative / introduced status
  • Natural Earthpublic domainthe relief basemap
  • USFSpublic domainnational-forest boundaries
  • USGS Protected Areas Databasepublic domainthe named parks, forests, and refuges behind "notable places to look"