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Northern California Yard Holes: Mountain Beaver, Not Voles

Question: Ukiah, CA (inland, 2 hrs north of Bay). Holes 2.5–3″ wide. Photos taken. Thinking voles?

Answer: Too Large for Voles—Likely Mountain Beaver

  • Mountain beaver (Aplodontia rufa) native to Pacific Northwest
  • Burrow diameter matches your photos
  • See handbook

Photo Request

Please email high-res images to svantassel2@unl.edu for our hole ID database.

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