Denver

Evergreen Lake Bat Scare Puts Jeffco Hikers On Rabies Alert

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Published on June 18, 2026
Evergreen Lake Bat Scare Puts Jeffco Hikers On Rabies AlertSource: James Wainscoat on Unsplash

An injured bat that vanished near the Evergreen Lake Trailhead has Jefferson County health officials sounding the alarm about possible rabies exposure and reminding everyone on the trail to look but not touch.

What Happened

According to The Denver Post, the bat was reported injured near the trailhead, but animal-control officers could not locate it when they arrived. Because the animal was never found, it could not be tested for rabies, so county officials are treating any possible contact as a serious precaution.

Rachel Reichardt, an environmental health specialist, told the paper, "The best way we can help is to make sure that our local animal control agencies can step in." Jefferson County Public Health is urging anyone who thinks they touched the bat, or who is not sure, to contact a health-care provider or the county health department for guidance.

Officials are also reminding hikers, homeowners, and pet owners not to handle wild bats and to keep pets away from any bat they see, injured or not.

Why Bats Matter

Bats are the animals most commonly reported with rabies in the United States, and even seemingly minor contact can be a problem, according to the Centers for Disease Control and Prevention. The CDC notes that warning signs in bats that may indicate rabies include being active during the day, turning up in unusual places, having trouble flying, or making contact with people.

Because bat bites can be tiny and hard to see or feel, health officials say medical evaluation is important any time a person or pet might have had contact with a bat, even if there is no obvious bite mark.

Bats In Colorado And Seasonality

Colorado is home to roughly 18 native bat species, and many of them are most active in the summer months, according to Colorado Parks and Wildlife. As temperatures climb, that activity means more chances for hikers, anglers, and homeowners to cross paths with bats.

Some bats hibernate in underground roosts while others migrate south for the winter, a pattern highlighted by the National Park Service. The seasonal shuffle helps explain why encounters are more common now than in the colder months.

What To Do If You Or Your Pet Had Contact

According to Jefferson County Public Health, anyone who touched the bat or may have had direct contact should reach out to a health-care provider or the county health department for a risk assessment. If the bat cannot be located and tested, clinicians may recommend post-exposure prophylaxis, the standard preventive treatment after a possible rabies exposure.

The CDC emphasizes that when treatment is started soon after exposure, it can prevent rabies from developing. Jefferson County advises residents with questions to call JCPH at 303-232-6301 or Jefferson County Animal Control at 303-271-5070.

Trail And Pet Safety Tips

If you find an injured or strangely behaving bat, do not touch it. Keep children and pets away and call animal control or public health so trained staff can handle the animal safely.

If a bat is found in a room where people were sleeping, health officials say to treat that as a potential exposure and seek medical advice promptly, even if no bite is noticed. Keeping pets current on their rabies vaccinations and leashing dogs on trails are key steps to avoid close encounters with bats and other wildlife.