Best Time to See Beavers in Colorado

April, May and June is the best time to see beavers in Colorado. Based on 1,682 verified iNaturalist observations, here is exactly when beavers are most active across the year in Colorado.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated June 28, 2026.

American Beaver photographed in ColoradoAmerican Beaver photographed in ColoradoAmerican Beaver photographed in Colorado
Photos by iNaturalist observers, used under Creative Commons.
Best months: April, May, June

1,682 verified observations of beavers in Colorado, recorded across 12 months of the year on iNaturalist.

When beavers are recorded in Colorado

Peak month

April

311 records (18.5% of the year)

Quietest month

January

42 records

MonthObservationsShare
January422.5%
February422.5%
March1005.9%
Aprilpeak31118.5%
Maypeak25615.2%
Junepeak25014.9%
July19611.7%
August1358%
September1267.5%
October975.8%
November674%
December603.6%

Beavers you are most likely to see

SpeciesVerified observations
American Beaver1,682

Sightings of beavers in Colorado peak in April, when 311 of the year's 1,682 verified observations are logged β€” about 18.5% of the annual total. Activity stays high through April, May and June.

The quietest stretch is January, February and December, when beavers are hardest to find β€” January sees just 42 records. If a reliable sighting matters, plan around the peak window rather than the off-season.

The beavers you are most likely to encounter in Colorado are American Beaver β€” the most-recorded species in the state. Each keeps its own seasonal rhythm, but the month-by-month pattern above reflects every reported sighting together.

Where to go

Best places to see beavers in Colorado

  • Bent's Old Fort National Historic Site β€” National Historic Site
  • Black Canyon Of The Gunnison National Park β€” National Park
  • Colorado National Monument β€” National Monument
  • Curecanti National Recreation Area β€” National Recreation Area
  • Dinosaur National Monument β€” National Monument
  • Great Sand Dunes National Park & Preserve β€” National Park & Preserve

Tours and experiences nearby

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Guided wildlife tours, boat trips and nature experiences, with free cancellation on most.

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Stay near Bent's Old Fort National Historic Site

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Frequently asked questions

What is the best month to see beavers in Colorado?+

April is the single best month, and the broader peak window runs through April, May and June, based on 1,682 verified iNaturalist observations.

When are beavers hardest to see in Colorado?+

January is the quietest month for beavers in Colorado, with only 42 verified records.

Are beavers active year-round in Colorado?+

Beavers are recorded in 12 of 12 months in Colorado, so they can be seen year-round, with a clear peak in April.