GUNUNG · Argentina

Monte San Lorenzo

Cerro San Lorenzo / Monte Cochrane

Information

Elevation: 3.706 m
Country: Argentina (AR)
Location / Range: Andes Patagonia — perbatasan Argentina (Santa Cruz) & Chili (Aysén)
Mountain type: Gunung (masif berselimut gletser)
Volcanic?: No (non-volcanic)
Coordinates: -47.5917, -72.3067
Difficulty: Berat (alpine terglasiasi, PD–AD; kawah rekahan/crevasse & cuaca ekstrem)
Best Season: November–Februari (musim panas Patagonia)
Permits & Rules: Pendekatan lewat lahan estancia swasta di sisi Argentina (mis. El Faldeo) — koordinasi dengan pemilik/penjaga; dari sisi Chili lewat Cochrane
Hazards: Cuaca Patagonia yang brutal (badai, angin), gletser berkawah rekahan, jendela cuaca sempit, dan keterpencilan ekstrem — evakuasi sulit

Description

Monte San Lorenzo (3,706 m), also known as Cerro San Lorenzo or Monte Cochrane, is the second-highest peak of the Patagonian Andes after San Valentín, straddling the Argentina–Chile border. The Cochrane name comes from the Chilean town where many climbers stage their approach, though the classic route actually approaches from the Argentine (Santa Cruz) side via the El Faldeo estancia. It was first climbed in 1943 by the priest-explorer Alberto Maria De Agostini's expedition. A large, remote, glacier-clad massif, San Lorenzo demands glaciated alpine skills, patient weather-window management, and readiness for Patagonia's notoriously violent storms.

Gallery

Foto bersumber dari Wikimedia Commons — klik untuk memperbesar & lihat sumbernya.

Routes

Faktor cuaca & musim (Patagonia)

Berat karena cuaca

Jendela cuaca menentukan

Kesulitan utama San Lorenzo adalah cuaca Patagonia, bukan ketinggian. Musim Desember–Maret membawa angin ganas dan ketidakstabilan — hari tanpa angin bisa dihitung dengan jari — sementara rekahan makin terbuka seiring musim berjalan. Musim dingin justru lebih stabil namun sangat dingin dengan siang yang amat pendek. Registrasi/pendekatan lewat estancia (mis. sirkuit refugio Toni Rohrer) perlu dikoordinasikan.

Source

Climbing Experiences

Monte San Lorenzo (3,706 m), the second-highest peak of the Patagonian Andes, is a large, remote, glacier-clad massif on the Argentina–Chile border near Cochrane. Its altitude is moderate, but its proximity to the Pacific makes its weather far harsher than the elevation suggests — Patagonian wind and cloud thwart most attempts. The classic De Agostini route crosses the Calluqueo glacier system to the north shoulder, threading a maze of crevasses before an easy summit walk when weather allows. The reports below include expedition films, NOLS course summit footage, a first-person trip report, and a modern hard technical first ascent on the east face.

References

The summary above is compiled from the following sources. Click to explore them yourself.