The Knife-Edge of Llanganuco: Erwin Schneider’s 1932 Triumph on Chopicalqui

In late July 1932, the members of the German-Austrian Alpine Club expedition descended from the icy dome of Huascarán Sur into the lush eucalyptus valleys of the Callejón de Huaylas. Most climbers would have rested for weeks after claiming the highest peak in Peru. But twenty-six-year-old Austrian topographer Erwin Schneider was possessed by relentless alpine curiosity.

Looking east toward the spectacular twin turquoise lagoons of Llanganuco, Schneider’s gaze was drawn to an elegant, symmetrical pyramid of snow and rock that towered above the high pass of Portachuelo de Llanganuco. It was Nevado Chopicalqui, soaring to 6,354 metres. While locals considered it an eastern spur of the Huascarán massif, Schneider recognized it as an independent, world-class mountain that offered one of the most aesthetic ridge lines in the Andes.

Scouting from Portachuelo

Gathering pack mules and porters in Yungay, Schneider, expedition leader Dr. Philipp Borchers, and physicist Hermann Hoerlin set out for the Quebrada Llanganuco. Winding through dense quenual groves, they climbed to the 4,767-metre pass of Portachuelo de Llanganuco. From this vantage point, the entire northern aspect of the Cordillera Blanca unfolded in dazzling white relief: the sheer granite faces of Huandoy, the fluted ice gullies of Chacraraju, and directly opposite, the soaring Southwest Ridge of Chopicalqui.

The line was obvious to an experienced eye: a winding crest of glacial firn that connected the high saddle between Huascarán and Chopicalqui directly to the summit pyramid. Yet the ridge was heavily defended. Gaping crevasses scarred its lower flanks, towering seracs threatened the intermediate slopes, and the upper section narrowed to a razor-sharp arête capped with fragile, wind-sculpted cornices that hung precariously over sheer vertical drops into the Ancush valley.

High Camp on the Glacial Col

On August 1, 1932, Schneider, Borchers, and Hoerlin climbed through the moraines above Quebrada Llanganuco and strapped on crampons at the glacier’s toe. Roping together, they negotiated a maze of hidden crevasses, establishing Moraine Camp at 4,900 metres before pushing their heavily laden packs to a tiny plateau perched at 5,600 metres on the Southwest Col.

The night at 5,600 metres was bitterly cold. Hoerlin, ever the scientist, methodically noted temperature inversions and prepared their photometers while Schneider inspected the crust of the snow. At dawn on August 3, the snow had transformed into firm, crisp nevé—ideal conditions for cramponing.

Dancing Along the Arête: August 3, 1932

Leaving their tent at first light, Schneider took the lead. With steady, rhythmic swings of his long wooden ice axe, he chipped small steps across hard blue-ice bulges, feeling for hollow pockets beneath the snow.

As the party ascended beyond 6,000 metres, the Southwest Ridge narrowed into a breathtaking knife-edge. On their left, the northwest ice wall plummeted two thousand metres toward the Llanganuco lakes; on their right, dizzying vertical slopes plunged toward the Quebrada Ulta. Schneider moved with cat-like balance, straddling the crest where necessary and keeping the rope taut between Borchers and Hoerlin.

Near 6,250 metres, a massive bergschrund opened across the ridge—a gaping crevasse with an overhanging upper lip of vertical rime ice. Pausing to catch his breath in the thin air, Schneider anchored himself, drove his ice axe deeply into the firn, and delicately chimneyed between two fragile snow bridges to bypass the chasm.

Emerging onto the upper headwall, the final challenge loomed: a colossal, rounded snow mushroom that formed the true summit of Chopicalqui. Schneider cut a series of deep footholds up the final 55-degree bulge, reached over the lip, and pulled himself onto the gleaming crest. Seconds later, Borchers and Hoerlin joined him on the narrow snow platform.

A Mountain for the Ages

At 6,354 metres, the three mountaineers embraced in quiet jubilation. Surrounding them in every direction were the untouched giants of the tropical Andes: Huascarán Sur towered directly to the west, its massive bulk throwing long morning shadows, while to the north, the sharp, fluted ridges of Huandoy and Chacraraju carved jagged silhouettes against the azure sky.

After spending an hour recording compass bearings, taking photographs, and constructing a small snow cairn, the party made a careful, methodical descent along the airy arête, safely regaining High Camp before the afternoon sun could destabilize the snow bridges.

Schneider’s 1932 line on Chopicalqui’s Southwest Ridge became an instant classic. Today, nearly a century later, it remains one of the most celebrated and sought-after alpine climbs in the Americas—a testament to Erwin Schneider’s peerless eye for alpine beauty and the daring spirit of the pioneers who first walked its knife-edge crest.