Two brothers from San Francisco are believed to have set a record for the longest highline ever walked across mountains in Yosemite National Park.

Moises and Daniel Monterrubio and a group of friends spent nearly a week stringing a single, 2,800-foot-long line from Taft Point west across a series of gulleys that plunge 1,600 feet.

The longest line walked in Yosemite had been a 954-footer extending from Taft Point to an anchor east. The new line was almost three times that length.

The brothers, who are training to be rope-access technicians, had been thinking about crossing that void for a year.
"Every time we’d go out there, we’d think about that line," Moises Monterrubio, 26, told the San Francisco Chronicle.

Highlining is high-altitude slacklining, in which a narrow strip of strong, nylon webbing – usually an inch wide and a few millimeters thick – is strung between two anchor points and serves as a kind of balance beam.

Highliner Daniel Monterrubio walks the 2,800-foot-long line off Taft Point above Yosemite Valley in Yosemite

Credit: AP

Completing a line means carefully heel-toeing from one end to the other while wearing a waist-harness that links to a 3-inch steel ring around the webbing. In a fall, walkers remain attached, but they have to haul themselves back up to balance or shimmy back to an anchor point while dangling upside down.

The sport in the past decade has flourished into a culture of athletes, gear brands and sponsorships.

Over the course of six days earlier this month, the Monterrubios used the help of 18 friends and fellow highliners to navigate their webbing through and across the landscape – hiking lines up from the valley floor, rappelling down from the cliffs above and maneuvering through countless tree branches.

Eventually, they had their anchors: a set of granite boulders at Taft Point and an old, thick tree trunk at the other outcropping.

"It was pretty intense and dangerous. But we made it happen," Moises Monterrubio said.

It all came together at sunset June 10: The line was set, the brothers were ready and the honour was theirs.
Daniel, 23, walked the line first and fell three or four times in the wind but made it across. Then Moises, also falling twice but catching himself on the line above the craggy landscape.

Yosemite boasts one of the most magnificent mountain ranges in the US

Credit: Jordan Siemens

Friends took turns on the line for four days afterward, most of them falling as well. The pride of a highliner is to conquer a line without slipping off.

Eventually, Moises walked the line in 37 minutes without a fall. So did fellow highliner Eugen Cepoi, Moises’ mentor.