Rattlesnake Season in Colorado: Six Tips to Stay Safe

A prairie rattlesnake as seen in Morgan County.
A prairie rattlesnake as seen in Morgan County. Courtesy of Colorado Parks and Wildlife
Rattlesnake season in Colorado is back with a vengeance, and it can be dangerous. Last year, endurance sportsman Dan Hohs died of a rattlesnake bite in Golden, and in recent weeks, two people have been bitten while outdoors in the Colorado Springs area.

But although Tina Jackson, species conservation coordinator for Colorado Parks and Wildlife, urges folks to follow six basic rattlesnake safety tips laid out below, she doesn't want anyone to be so paralyzed by fear that they miss experiencing the wonders of nature.

"Most of us are hiking past lots of things we have no idea are hiding in the underbrush beside us," Jackson points out. "That can be scary to some people. But a snake's first thought is to hide from us, and they do a really good job of it. So we should still be getting out and hiking. We just have to be aware."

Mere hours after my interview with Jackson, this advice came in handy. I was walking my dog in an area near a golf course in the Ken-Caryl Ranch area when we encountered a rattler on the edge of the path — and we both lived to tell the tale. A photo of the snake is below, along with a shot I took of another rattlesnake in the same vicinity last year.

The temperatures we've been experiencing of late are the reason rattlesnakes have been more prevalent lately.

click to enlarge This rattlesnake was spotted by yours truly in the Ken-Caryl Ranch area earlier this month. - PHOTO BY MICHAEL ROBERTS
This rattlesnake was spotted by yours truly in the Ken-Caryl Ranch area earlier this month.
Photo by Michael Roberts
"All snakes are ectothermic," Jackson says. "Most people know that as 'cold-blooded,' and that means their body temperature isn't determined by a metabolism, like ours. It's determined by what the temperature is around them. Typically, a snake is going to come out when the temperature outside is in a range they can handle. For most snakes, that's 60 degrees on the low end. At 70, they'll be comfortable, and they'll be happy in the 80s. But if they get too hot, they can't cool themselves off and actually run a fever they can't control, so they'll seek out cooler spots. That's why right now is the perfect time for snakes to be out during the day. But when it gets warmer, it will be too hot for snakes to come out until it cools off in the evening. They'll be out at nighttime, because that's when there will be more of the temperatures they like."

Still, a rattlesnake's survival instinct tends to take precedence over comfort. According to Jackson, "there are a different things snakes are trying to balance. They sit solidly in the middle of the food chain: They eat insects, small mammals like rodents and little bunnies, and also other snakes, but they also get eaten by a whole lot of other stuff. So they're always thinking, 'How do we keep from being eaten?' And most of the time, snakes want to hide from us. We're bigger than them, so in their minds, we're something that could hurt them."

Jackson notes that "we have over twenty different kinds of snakes in the state" — the complete list is also shared here, along with a CPW guide to Colorado amphibians and reptiles — "but only three of them are venomous, and all of those are rattlesnakes. Of course, all snakes can bite, just like anything with teeth can bite, but we don't have to worry nearly as much about the ones that don't have venom." Bites from non-venomous snakes can be treated like any other animal bite, she divulges.

Bites happen "when a snake feels threatened," Jackson goes on. "In most cases, they're going to hide — and most of our snake species are colored the way they are because it makes them blend in with their environment. Their color pattern makes them hard to see, so if you're walking up, they're going to sit still and assume you'll think they're a piece of dirt or a rock. But if a rattlesnake thinks hiding isn't working, it's going to shake its rattle. That tells whoever is threatening the snake, 'I'm scary and you should be afraid.'"

Some non-venomous snakes, including the bullsnake, another Colorado native, "have figured out this behavior," Jackson reveals. "They'll actually mimic the rattle sound with their breath or by moving in the sand around them. It's really amazing to watch."

click to enlarge Another rattlesnake as seen in the Ken-Caryl Ranch area circa 2017. - PHOTO BY MICHAEL ROBERTS
Another rattlesnake as seen in the Ken-Caryl Ranch area circa 2017.
Photo by Michael Roberts
In the case of rattlesnakes, however, "they'll strike if the rattle doesn't scare off whatever's threatening them, or if the threat is so close they can't rattle. But mostly, they don't want to strike. Venom is costly for them to produce. But that's their last line of defense."

If you are bitten by a rattlesnake, Jackson's recommendations are simple: "Seek medical treatment. The first thing you should do is call 911, and if you're not in cell range, which is harder and harder not to be, get into cell range and call 911. There aren't a lot of things you can do on your own to treat a venomous snake bite, so just try to stay calm and let the medical professionals take care of it."

Better yet, "don't put yourself in the position to get bitten," Jackson maintains. "When you're hiking or climbing, pay attention to where you're putting your feet and your hands, and pay attention to where your kids and your dogs are. If you're walking across a grassland or somewhere that doesn't have a grooved trail, wear close-toed shoes and long pants — anything that gives you a bit of coverage. And don't play with snakes. And if you see one on the trail, don't try to pick it up and move it off."

She elaborates on these suggestions in the following blog post, originally written for Colorado Outdoors magazine, a CPW publication. In the meantime, Jackson emphasizes that "if you come across a rattlesnake, give it plenty of room — but enjoy the fact that you're seeing these really remarkable creatures. Because they're amazing."

Especially when seen from a safe distance.

Click to access Colorado Parks and Wildlife's "Quick Key to Amphibians and Reptiles of Colorado." Continue to read Tina Jackson's six tips for rattlesnake safety, followed by a list of non-venomous and venomous snakes native to Colorado.
KEEP WESTWORD FREE... Since we started Westword, it has been defined as the free, independent voice of Denver, and we'd like to keep it that way. With local media under siege, it's more important than ever for us to rally support behind funding our local journalism. You can help by participating in our "I Support" program, allowing us to keep offering readers access to our incisive coverage of local news, food and culture with no paywalls.
Michael Roberts has written for Westword since October 1990, serving stints as music editor and media columnist. He currently covers everything from breaking news and politics to sports and stories that defy categorization.
Contact: Michael Roberts