Beavers in Colorado in May

Yes, May is one of the best months to see beavers in Colorado. It is the 2nd busiest month of the year, with 256 of the 1,682 sightings logged across the year (15.2%), based on verified iNaturalist records.

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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.

Peak month for beavers in Colorado

15.2%

of yearly sightings

256

records in May

#2

busiest month of 12

1,682

verified records a year

April 18.5%, May 15.2%, June 14.9%. Busiest month is April at 18.5%.

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

In Colorado, May carries 15.2% of the year's beavers sightings, about 6.9 points above an even month-to-month split. That makes it the 2nd busiest of the twelve months, out of 12 months with recorded activity.

Activity is easing off from April (18.5%) into May, and it heads toward June (14.9%) after. This is right inside the peak window, so May is one of the surest months to plan a trip around.

The beavers most often recorded in Colorado are American Beaver. Those counts are annual totals rather than a May split, so treat them as which species you are likely to encounter, while the month figures above show how many sightings fall in May itself.

Which beavers you are most likely to see

  • American Beaver1,682 records
Plan your tripBent's Old Fort National Historic Site

Plan your beaver trip in Colorado

Start with live tours near Bent's Old Fort National Historic Site, then compare a nearby stay and a broader wildlife backup before you lock in the trip.

Frequently asked questions

Can you see beavers in Colorado in May?+

Yes. May accounts for 256 of the 1,682 verified beavers sightings logged in Colorado across the year, which is 15.2% of the annual total.

Is May a good time to see beavers in Colorado?+

May is one of the best months. It ranks 2nd of the year and sits inside the peak window of April, May and June.

What month is best for beavers in Colorado?+

April is the single busiest month, with the broader peak running through April, May and June, based on 1,682 verified observations.

Which beavers are you most likely to see in Colorado?+

The most-recorded species in Colorado are American Beaver, based on all-time iNaturalist counts.