Jatunllacsa (also called Pongos) is a mountain sub-system in Peru with an elevation of 5603 metres. Jatunllacsa is within the following mountain ranges: Peruvian Andes, Cordillera Occidental de Peru, Cordillera Blanca. Its territory is within the Peruvian protection area of Huascarán National Park. It is on the border of 2 provinces: Peruvian provinces of Recuay and Huari. Its slopes are within 2 cities: Peruvian cities of Catac and Chavin De Huantar.
Based on the elevation provided by the available Digital elevation models, SRTM filled with ASTER (5603m), TanDEM-X(5526m), , Jatunllacsa is about 5603 meters above sea level.The height of the nearest key col is 3253 meters so its prominence is 2350 meters. Jatunllacsa is listed as mountain sub-system, based on the Dominance system and its dominance is 41,94%.
| Name | Jatunllacsa / Pongos |
| Altitude | 5603m |
| Lat/Lon | -9,77394,-77,2477 |
| Dominance % | 41,94% |
| Prominence | 2350 |
| Key Lat/Lon | -9,79642,-77,2419 |
| Key Col Alt | 3253 |
| Parent Peak | Murrorajo / Mururaju -9,80724,-77,2444 |
| Dominance Class | mountain sub-system |
| DEM Avg. Altitude | 5603 |
| TanDEM-X | 5526 |
| ALOS | 5615 |
| First Ascent info | Lionel Terray, T. de Booy, G. Egeler (France) - 10/06/1952 |
| First Ascent Source | BOOK: Le Ande AUTHOR: Mario Fantin DATE: 1979 PAGE: 77 / JOURNAL: AAJ (American Alpine Journal) DATE: 1965 |
| Isolation | 3,7km |
| Country | Peru |
| Peru City | Catac, Chavin De Huantar |
| Peru Province | Recuay, Huari |
| Peru Department | Ancash |
| Peru Protection Area | Huascarán National Park |
| Mountain Range Level 1 | Peruvian Andes |
| Mountain Range Level 2 | Cordillera Occidental de Peru |
| Mountain Range Level 3 | Cordillera Blanca |
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