Takero “Kenro” Nakajima was one of Japan’s most-respected alpinists. He died with longtime rope companion Kazuya Hiraide, during an attempt of the West Face of K2 (8,611m).

Hiraide, 45, and his climbing partner Kenro Nakajima died in a fall on July 27, while attempting the steep West Face of K2 (8,611m).

Javier Botella de Maglia died on August 2, during an attempt on Kazakhstan’s highest mountain, Khan Tengri (22,999ft).

Lhakpa Tenji Sherpa, 54, passed away on May 7 while descending from the world’s fifth-highest peak, Makalu (8,463m).

Climbing pioneer, wilderness advocate, and three-term Salt Lake City mayor Ted Wilson died on April 11, due to a combination of congestive heart failure and Parkinson’s disease.

Daniel Frandson drowned while bridge jumping with a friend on Idaho’s Payette River on May 31. He was 24 years old.

Tony Sartin passed away suddenly while out cragging, after an unclear medical emergency, on September 4, at the age of 57.

David Rearick, died aged 92, on August 21. He made the first ascent of The Diamond on Longs Peak .

Bob Williams died on September 3, aged 96. He was a skilled dancer, celebrated mathematician, and early American rock climber.

Húserka, 34, died on October 31, after making the first ascent of the 2,220-meter East Face of Nepal’s Langtang Lirung (7,234m).

Mark “Chappy” Chapman passed away on November 25, after a hard-fought battle with an aggressive brain tumor (glioblastoma). He was 70 years old.

Álvaro “Pop” Peiró died on April 2, murdered during a robbery in Bogotá, Colombia. He was 32 years old

American alpinist and guide Adam George died on April 2, in a helicopter crash while guiding heliski clients near Verbier, Switzerland. He was 45.

Neil Cannon died on April 2, aged 63, after a long, hard-fought battle with prostate cancer.

Yosemite Valley pioneer TM Herbert died on March 23, aged 87.