Boulder in the Morning

Cityscape of Boulder, Colorado

Photo Credit: SWKrullImaging (iStock).

WARNING: This post contains graphic content. Reader discretion is advised.

According to the Boulder County Sheriff's Office, an adult female hiker was attacked and sexually assaulted while hiking alone on the "Walker Loop Trail" on Tuesday afternoon.

A suspect has not been identified. The Sheriff's Office reports that the attacking male was described as caucasian, in his 40s, "tall and thin, yet muscular," and bald. He was wearing a mask.

The Sheriff's Office wants those who were hiking in the area on July 28, 2020 that may have seen something suspicious to contact Detective Asa Merriam at 303-579-3611 or via email at

The press release also encouraged recreators to be diligent and aware of their surroundings, especially while alone.

If you're hiking alone, make sure to let someone know where you're headed and when you're planning to be back. Avoid headphones that limit your hearing and research trails beforehand with safety concerns in mind. Consider hiking at busier times of the day and utilizing an emergency signaling device, such as a GPS unit or a hiking whistle. Find more safety tips here.

It's also important for those on the trail to look out for one another. If you see something that seems fishy, intervening in a safe manner may be an option. If you spot someone that might be in trouble, ask them if they need help. If you believe that you've witnessed a crime, report it to the local authorities. Find additional tips on bystander intervention here.

Walker Loop Trail is also known as Walker Ranch Loop Trail – a 8.3-mile heavily trafficked trail that is rated as difficult, according to It is located at 7701 Flagstaff Road in Boulder County, Colorado.

Safety while on the trail has long been a concern for many outdoor recreators. One group that's working hard to create a safe environment and educate trail-goers is Despite the Dark, which recently launched a chapter in Colorado Springs on March 8. Despite the Dark meet-ups around the country include things like nighttime run clubs and self-defense classes. 

Director of Content and Operations

Spencer McKee manages the OutThere Colorado digital publication as the Director of Content and Operations. He also writes about outdoor recreation, travel news, and more. In his spare time, he loves to rock climb, trail run, and mountain bike.


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(7) comments


What has Colorado come to,that you can't take a walk or a hike without being in fear that you might be accosted.And yes the article was poorly written. "walker & hikers Stay Golden"


Foolish little girl....


How is it that the “little girl” is foolish when he’s the one being a predator and has to assault a woman who’s walking & minding her business?!? We shouldn’t have to carry weapons on trails but here we are, doing that for *foolish* 40 year old men who can’t mature and go about their lonely sinful lives.


Hello, I think the article on the hiker was very poorly written. and there was a warning saying it contains graphic content, it didn't hardly contain any content at all. It said he wore a mask, did you mean a ski mask a covid mask, a Halloween mask? No details here. And it just says sexually assaulted did he just grab her or did he rape her, why is there no story on this. And who decided to start saying sexually assault instead of rape? Sexual assault just sounds like they didn't do much where rape is very explanatory.


He is bald so I’m going to assume a covid mask. I’m sure you’ve seen a lot of Caucasian people wearing masks on the trails, as well as their children (asymptomatic beings). I don’t know what kind of torture & torment you came to read but bottom line is that a woman was groped or touched inappropriately. It was U N W A N T E D. Her privacy was I N V A D E D. Why does it need to affirm that there was penetration or even unwanted touching?! You’re on a 8 mile hike, the last thing you should be thinking about is getting groped by a bald 40 year old pale slender man.


well he did have a mask on


Men like you are the problem.

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