Pennsylvania mammals

Eastern Mole in Pennsylvania

Scalopus aquaticus

Native to Pennsylvania S5 Secure in Pennsylvania

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

Eastern Mole in Pennsylvania, by the numbers

Occasional in Pennsylvania 42nd most recorded of 77 mammals logged in Pennsylvania

38 occurrence records
27 with iNaturalist photos

Records from 2000–2026.

When to look for the Eastern Mole in Pennsylvania

Most sightings fall in October to November.

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

Monthly Pennsylvania records (table)
MonthRecords
January1
February3
March1
April3
May4
June2
July5
August4
September2
October6
November7
December0

Monthly eastern mole occurrence records (iNaturalist and GBIF) in Pennsylvania, 2000–2026.

Seasonality

Year-round in Pennsylvania, with recorded sightings peaking in October–November, with a smaller rise in July.

Occurrence map

Where Eastern Mole has been recorded in Pennsylvania

38 records mapped · zoom and drag to explore

38 Pennsylvania records mapped

Notable places to look

Park, forest, or monumentiNaturalist records
Marsh Creek State Park 2
Ridley Creek State Park 1
Tyler State Park 1
Michaux State Forest 1

Protected places with the most eastern mole 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 Pennsylvania

CountyRecords
Berks County 9
Delaware County 6
Philadelphia County 5
Chester County 4
Lancaster County 2
Bucks County 2
Dauphin County 2
Adams County 2
Montgomery County 1
Lycoming County 1
Northampton County 1
Franklin County 1
2 other counties 2

The complete county distribution, spread across 14 Pennsylvania counties. Every occurrence record falls in one county, so these sum to the total. Counties from GBIF and US Census boundaries.

Nearly all of Pennsylvania’s 26 eastern mole records come from GBIF rather than iNaturalist, which makes sense for an animal that spends almost its entire life underground and is nearly blind, sensing earthworms and grubs by touch rather than sight. Most people never see the mole itself, only the ridged tunnels and molehills it leaves behind in lawns and gardens.

NatureServe ranks it S5, secure, in Pennsylvania, and the state’s occasional showing among tracked mammals backs that up. Records peak in October and November, likely tied to fall soil moisture pushing worms and grubs closer to the surface where tunneling activity becomes more visible. Pymatuning, Presque Isle, and Delaware Water Gap post the most reports, all places with the kind of soft, worm-rich soil this species needs, though molehills anywhere in the state’s lawns and gardens are just as good a sign.

Occurrence data from iNaturalist and GBIF.

More mammals in Pennsylvania 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"