Deaf US couple summits Kanchenjunga, completes five 8,000m peaks

Scott Lehmann and Shayna Unger became the first deaf couple to summit five of the world’s highest mountains after reaching the top of Kanchenjunga on Monday.

SST Facebook

May 19, 2025 | Everest Chronicle

An American couple made mountaineering history Monday by becoming the first deaf pair to summit five of the world’s tallest peaks, after successfully reaching the top of Mount Kanchenjunga, the world’s third-highest mountain.

Scott Lehmann and Shayna Unger reached the 8,586-meter (28,169-foot) summit early Monday alongside their longtime guides, twin brothers Mingma Dorchi and Mingma Tenji Sherpa, according to Chhang Dawa Sherpa, expedition director at Seven Summit Treks.

The Kanchenjunga climb marks the couple’s fifth ascent of an 8,000-meter peak. The pair has previously summited Everest, Lhotse, Makalu and Manaslu, all under the coordination of the Kathmandu-based expedition company. They have also climbed several of the world's other renowned mountains, including Kilimanjaro in Tanzania, Aconcagua in Argentina, Denali in Alaska, Mont Blanc in France, and the Matterhorn on the Swiss-Italian border.

Despite being profoundly deaf since birth, Lehmann and Unger have embraced high-altitude climbing with what they describe as “unshakable determination,” according to their website, scottshayna.com. The couple prepared for their expeditions by studying route details through videos and written communication.

“We want to break barriers and create space for other deaf people to thrive outdoors,” they wrote. “We believe nature belongs to everyone.”

The Sherpa brothers who guided the couple have been with them since their first 8,000-meter summit and continue to play a key role in their pursuit of mountaineering milestones.

Kanchenjunga, located on the border between Nepal and India, is known for its technical challenges and extreme conditions. It is considered one of the most difficult peaks to climb among the 14 mountains that rise above 8,000 meters.

Related Articles

For Sherpas, by Sherpas

A pair of Sherpa entrepreneurs have introduced affordable high-quality technical gear into the Nepali market.

Dec 07, 2021 | Everest Chronicle

Thanks to COVID, Confusion Reigns around Extension of Everest Permits

Last spring, many expedition organizers and climbers cancelled their expeditions due to rampant COVID-19 infections at Everest Base Camp, nearly all of whom want to climb again. But Nepal’s Department of Tourism is giving mixed messages around the possibility of extending unused climbing permits.

Jan 22, 2022 | Everest Chronicle

Kami Rita Eyes 26th Ascent of Mount Everest

Kami Rita Sherpa, the legendary guide who has summited Mount Everest more than any other human in recorded history, is planning to climb the world’s highest peak one more time. Sherpa, who first climbed Everest in 1994, was planning to summit the peak twice last year. He later aborted his second attempt after reaching Camp III due to bad dreams. This year, he will be guiding a team of American climbers.

Feb 02, 2022 | Everest Chronicle

Jost Kobusch just doesn’t care 

The ambitious German mountaineer speaks to Everest Chronicle about his second attempt to climb Everest solo, in winter, and without supplemental oxygen.

Feb 07, 2022 | Dewan Rai

When a summit isn’t actually a summit, but still somehow is

Mingma G’s bold and public ascent to the true summit of Manaslu should have ended the debate over the mountain’s highest point entirely. But instead, it seems to have brought up more questions than answers.

Feb 11, 2022 | Dewan Rai

Bad weather delays Cho Oyu winter ascent 

Gelje Sherpa’s team is now considering a second push to the summit of Cho Oyu after strong winds and deteriorating weather conditions ended their summit bid. Another team led by Mingma Dorchi and Pioneer Adventure is at their base camp waiting for a weather window.

Feb 21, 2022 | Everest Chronicle

Everest expedition operators fear another chaotic year

With the ongoing covid pandemic, travel restrictions to China, and continued global uncertainty, Nepal’s expedition operators are facing another difficult year.

Feb 24, 2022 | Dewan Rai