HikeMetrics
Global Hiking Index
HikeMetrics
Global Hiking Index
HikeMetrics // Comparison Engine
Route A

Illampu Circuit

bolivia/cordillera-real
VS
Route B

Nahuel Huapi Traverse (4 Refugios)

argentina/nahuel-huapi-national-park-bariloche

Illampu Circuit vs Nahuel Huapi Traverse (4 Refugios): Intensity Score Comparison

Nahuel Huapi Traverse (4 Refugios) is unequivocally more demanding overall (+9 points). While Illampu Circuit is a serious endeavor, Nahuel Huapi Traverse (4 Refugios) pushes the limits further, particularly regarding technical seriousness and exposure.

Model-based (not a field report) · Evaluates overall route demand, not danger.

Intensity Difference
+9 Nahuel Huapi Traverse (4 Refugios) is harder
Higher Physical Load
Illampu Circuit
Higher Technical Seriousness
Nahuel Huapi Traverse (4 Refugios)
Greater Commitment
Illampu Circuit
Overall HikeMetrics Score
Illampu Circuitwins 6 of 9 metrics
6
Route A
3
Route B
bolivia/cordillera-real

Illampu Circuit

EXTREME // LETHAL
Full Route Report

The Illampu Circuit is a demanding 6-to-7-day trek that circumnavigates the northern giants of the Cordillera Real: Illampu (6,368m) and Ancohuma (6,427m). Often described as one of Bolivia's most vertically significant non-technical routes, the loop starts and ends in the sub-tropical town of Sorata (2,700m). Much of the circuit sits above 4,000m once the Sorata valley is left behind, crossing multiple high passes including the Abra de la Calzada (~5,045m). The route crosses high-altitude pampas inhabited by Aymara herders and traverses rugged moraine fields directly beneath active glaciers.

argentina/nahuel-huapi-national-park-bariloche

Nahuel Huapi Traverse (4 Refugios)

EXTREME // LETHAL
Full Route Report

The Nahuel Huapi Traverse is a multi-day hut-to-hut route that circumnavigates the mountain ranges adjacent to San Carlos de Bariloche. The trail follows a high-alpine path, connecting four distinct mountain refugios via ridgelines, loose scree slopes, and granite passes. The terrain is characterized by a mix of Andean forest and exposed high-altitude terrain, where route-finding and stability on loose rock are primary requirements. The system of stone huts (refugios) provides a logistical framework for the journey, though hikers must be prepared for sustained physical output in an exposed mountain environment.

Head-to-Head Metric Analysis

Intensity ScoreHigher Overall Demand
84
WINNER93
Physical LoadMore Physically Taxing
83 WINNER
68
Technical SeriousnessMore Technically Demanding
63
WINNER95
DistanceLonger route
85 km WINNER
45 km
Elevation GainMore vertical
4,800 m WINNER
3,400 m
Highest PointHigher summit
5,045 m WINNER
2,050 m
DurationShorter commitment
7 days
WINNER4 days
Hazard Level
EXTREME // LETHAL
EXTREME // LETHAL
Crowd LevelLess crowded
1 / 5 WINNER
3 / 5
RemotenessMore remote
5 / 5 WINNER
4 / 5

HikeMetrics Hazard Scale — Explanation

1
LOW // ACCESS
2
STANDARD // RT
3
MODERATE // CHLG
4
EXPERT // HAZARD
5
EXTREME // LETHAL

The HikeMetrics Hazard Scale is a proprietary 5-point classification system that evaluates hiking routes across five dimensions: physical demand, technical complexity, altitude exposure, weather risk, and rescue accessibility.

Unlike generic star ratings, the Hazard Scale is calibrated against altitude profiles, elevation gain per day, and logistical isolation factors — making it the most precise route classification system available.

Full Scale Documentation
Route A // Hazard Verdict
Illampu Circuit
EXTREME // LETHAL
extreme altitude and vertical gain: The trek involves a 2,000m+ initial climb from Sorata and sustains multiple days above 4,300m, peaking at the 5,045m Calzada Pass.
weather and exposure: Night temperatures can drop to -15°C (5°F), and storms can move in rapidly.
Route B // Hazard Verdict
Nahuel Huapi Traverse (4 Refugios)
EXTREME // LETHAL
technical scrambling and exposure: Portions of the route, particularly the section between Jakob and Laguna Negra, involve steep terrain with significant fall potential and Class 2-3 scrambling sections on loose rock.
mountain weather variables: The ridgelines are fully exposed to regional weather systems. High winds, temperature drops, and sudden precipitation can occur regardless of the season.

Required Gear Comparison

Illampu Circuit
4-season high-altitude tentSleeping bag rated for -20°CSturdy mountaineering-grade bootsGaiters (for deep snow/mud on the passes)Satellite messenger (InReach)Water filtration system
Nahuel Huapi Traverse (4 Refugios)
High-cut trekking boots with rigid solesTechnical backpack (40-50L capacity)Waterproof hardshell and synthetic insulation layersSleeping bag liner for refugio staysTrekking poles for stability on loose screeRedundant navigation (GPS with offline maps and paper backups)Gloves and headwear for exposed ridge sections

Compare with Other Routes

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austria
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australia
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belize
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bolivia
Cordillera Apolobamba Traverse
EXTREME // LETHAL