Over Labor Day weekend, while most people were cracking beers and barbecuing听with family, Teresa Gergen, 55, was clinging to a jagged granite face 13,553 feet above sea level, crossing off the peak that would make her the first person in history to summit all 846 thirteeners听in the lower 48 and Hawaii.
Gergen, who鈥檚 from Denver, completed most of the thirteeners听on the list by 2008鈥攅xcept for听134 in California and Wyoming. So when she retired from her job as a library technician in 2013, she turned her focus to summiting the remaining听ones, spending summers living out of her car and climbing as much as possible.
鈥淚鈥檇 go in on a backpacking trip to climb peaks for anywhere from two to twelve days, come out and take a rest day or two in Bishop [in California], then go back in and do it again from another trailhead, all summer long, for as long as I could manage,鈥 she says.
Though (like being the first person to summit all 2,311 Colorado peaks above 10,000 feet and climbing each state鈥檚 high point), Gergen鈥檚 mountaineering career didn鈥檛 begin until her mid-thirties, when a coworker at the University of Colorado casually suggested she climb a fourteener. 鈥淗e had to explain what that meant,鈥 she says. She bought a guidebook and set out听but accidentally hiked听up a nearby thirteener听instead.
鈥淚 decided I had no business dreaming about climbing peaks, nor did I have the training to do so, and wrote them off,鈥 says Gergen. Two weeks later, though, she was back at it and hasn鈥檛 stopped since. She completed the听53听Colorado fourteeners听in three years,听at the age of 37, and immediately set out to check off the next list: Colorado鈥檚 584 thirteeners.
At the start of Labor Day weekend this year, Gergen only had two peaks left on her enormous thirteener听list:听Norman Clyde and Palisade Crest, both in California.听鈥嬧婼he began on August 26听by soloing a cross-country route out off听South Lake Trailhead, near Bishop. She left the trail not long after Bishop Pass and cut across the barren, high-altitude plateau of Dusy Basin, scrambling up and over three seldom visited high passes: Knapsack, Potluck, and Cirque. The two-day traverse听required careful route finding to avoid icy slopes听(a result of听the听heavy听snow year)听and cliffing out.听
After camping one night under the toothy ridge leading to the peak of Norman Clyde, Gergen was relieved to learn听via an InReach message that the inconsistent weather forecast had evened out.

Gergen laced up her听shoes and picked her way through Class听3听and minor Class 4听terrain until she was, at last, standing on top of 13,854-foot Norman Clyde Peak. 鈥淭o my relief, the climbing ended up being easier than any I鈥檇 done all summer, and I summited and descended without issue,鈥 says Gergen.
Last on her list was Palisade Crest, a series of 12听stone pinnacles named after characters in J. R. R. Tolkien鈥檚 Lord of the Rings series, the highest of which is 13,553-foot Gandalf Peak.听Many routes on the ridge听get听technical, so she partnered听up with fellow mountaineers听John and Alyson Kirk.
鈥淚 knew that, with good weather and John鈥檚 leadership, my final thirteener, Palisade Crest, was just a matter of putting in the work鈥攁nd being careful, since it鈥檚 a very intricate route across a lot of exposed technical rock,鈥 she says.
On the morning of August 30, the Kirks and Gergen began their听ascent of Gandalf Peak. After seven hours of climbing on high-elevation听granite, the three topped out around 1 P.M. The Kirks presented Gergen with a custom banner commemorating her achievement, snapped a few photographs, and started their descent.
鈥淚 felt happy and relieved and grateful on the summit,鈥 says Gergen.听鈥淏ut the full force of the accomplishment didn鈥檛 really hit until the long backpack out over the next couple of days.鈥
After two decades of obsessive climbing and checking off peaks from lists, Gergen says that this August鈥檚 triumph felt bittersweet: 鈥淯nlike my past completions, it鈥檚 not clear to me yet that I鈥檒l just march right on to the next list.听I will have to think hard about whether I still have what it takes to both climb hard and climb safe.鈥