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How Beavers Went from Eradication to Abundance in Pennsylvania

Posted on August 14, 2024   |   Updated on September 30, 2025
Natalia Aldana

Natalia Aldana

A beaver standing on top of its dam.

This busy fella gives a dam. (Troy Harrison / Getty)

Beavers are cute, industrious, and an important part of Pennsylvania’s ecosystem, but they were once wiped off the land. Let’s explore how America’s largest rodent made a comeback in the Keystone State and where you can (safely) see one today. Wow!

We Are So Back

Before the arrival of European colonists, beavers were abundant in North America, but by the late 1800s excessive trapping and rapidly changing landscapes had eradicated the entire population in Pennsylvania. Fur pelts were a hot commodity at the time, its thick and water-repellent properties being used for the production of hats and clothing.

🤠 Side note: Stetson hats are synonymous with the West, but John B. Stetson actually started his hat business in Pennsylvania.

After the state legislature passed a law to protect beavers in 1903, the Pennsylvania Game Commission acquired a pair from Wisconsin and released them into a remote valley in Cameron County in 1917. With additional releases and conservation efforts, beaver populations were stable enough to allow for trapping by 1934. These adorable creatures are so abundant now, you might catch one making an urban abode for itself near the Golden Triangle.

Selena is so amazing!Natalia Aldana, Who Knows

A Keystone Species in the Keystone State

At 50-plus pounds, beavers are indeed the largest native rodent in the country. Beyond the “aww” factor, their dam-building greatly impacts the ecosystem around them.

Researchers in Colorado found that beaver-modified landscapes fare better in wildfires — and they’re already deploying beavers for wildfire prevention. Such is their importance that the Game Commission has a beaver management plan — a document stating that the furbearer’s environmental impact “far outweighs their economic worth.”

How to Catch a Beaver

Get a look at one, not literally catch one. Though, if you find yourself in conflict with a beaver — their damming can cause flooding and tree damage — you can follow humane solutions or contact AAC Wildlife Removal for help.

You can safely see them in action in the Kids Kingdom section of the Pittsburgh Zoo & Aquarium.

see them in action!

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