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Aerial imagery shows multiple beaver colonies in Rattlesnake Creek; most occupy side channels

Rattlesnake Creek Watershed Group · January 19, 2026
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Summary

Using aerial imagery and a dam-capacity model, Tory Ritter reported finding 7–10 visible beaver colonies in the Rattlesnake Creek drainage, typically occupying off-channel wetlands and side channels rather than the main spring-runoff-dominated channel.

Tory Ritter, nongame wildlife biologist with Montana Fish, Wildlife & Parks, used aerial imagery to map beaver activity in the Rattlesnake Creek drainage and reported finding between seven and 10 visible beaver colonies.

"What I found on aerial imagery is somewhere between 7 and 10 beaver colonies along Rattlesnake Creek," Ritter said, noting that additional…

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