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

Terskey Alatau & Ala-Köl Lake

kyrgyzstan/issy-kul-karakol
VS
Route B

Prossautal — A Glacial Box Valley in Hohe Tauern

austria/Gastein Valley, Salzburg

Terskey Alatau & Ala-Köl Lake vs Prossautal — A Glacial Box Valley in Hohe Tauern: Intensity Score Comparison

Terskey Alatau & Ala-Köl Lake is unequivocally more demanding overall (+50 points). While Prossautal — A Glacial Box Valley in Hohe Tauern is a serious endeavor, Terskey Alatau & Ala-Köl Lake pushes the limits further, particularly regarding sustained physical exertion.

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

Intensity Difference
+50 Terskey Alatau & Ala-Köl Lake is harder
Higher Physical Load
Terskey Alatau & Ala-Köl Lake
Higher Technical Seriousness
Terskey Alatau & Ala-Köl Lake
Greater Commitment
Terskey Alatau & Ala-Köl Lake
Overall HikeMetrics Score
Terskey Alatau & Ala-Köl Lakewins 7 of 10 metrics
7
Route A
3
Route B
kyrgyzstan/issy-kul-karakol

Terskey Alatau & Ala-Köl Lake

EXPERT // HAZARD
Full Route Report

Ala-Köl is a world-renowned glacial lake set within the Terskey Alatau range of the Tien Shan, near Karakol. This 3-4 day traverse through the Karakol Valley is widely considered the quintessential Kyrgyzstan trekking experience. The route typically involves ascending the steep 3,860m Ala-Köl Pass, where hikers are met with some of the most dramatic high-alpine vistas in Central Asia. The lake's depth and mineral content produce an ever-shifting spectrum of opaque turquoise and deep blues. The trek concludes in the Altyn-Arashan valley, a lush high-altitude pasture famous for its natural geothermal hot springs set beneath the massive ice-wall of the 5,012m Pik Palatka.

austria/Gastein Valley, Salzburg

Prossautal — A Glacial Box Valley in Hohe Tauern

LOW // ACCESS
Full Route Report

Deep within the Hohe Tauern National Park, the Prossautal is a valley that branches off the Kötschachtal near Bad Gastein. This long but mostly flat trail follows the Kötschach Ache river into a classic glacial box valley. The rock walls on either side rise significantly, with multiple thin waterfalls cascading down the granite faces. The trail ends at the Alpengasthof Prossau, a traditional alpine inn positioned near the base of the Tischler glacier.

Head-to-Head Metric Analysis

Intensity ScoreHigher Overall Demand
76 WINNER
26
Physical LoadMore Physically Taxing
70 WINNER
32
Technical SeriousnessMore Technically Demanding
69 WINNER
23
DistanceLonger route
45 km WINNER
14 km
Elevation GainMore vertical
2,400 m WINNER
230 m
Highest PointHigher summit
3,860 m WINNER
1,278 m
DurationShorter commitment
3 days
WINNER1 days
Hazard LevelMore accessible
EXPERT // HAZARD
WINNERLOW // ACCESS
Crowd LevelLess crowded
4 / 5
WINNER2 / 5
RemotenessMore remote
5 / 5 WINNER
2 / 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
Terskey Alatau & Ala-Köl Lake
EXPERT // HAZARD
steep loose scree: The descent from the Ala-Kol pass is extremely steep and consists of loose, sliding gravel.
weather instability: Snow, hail, and high-altitude gales can occur even in mid-July.
Route B // Hazard Verdict
Prossautal — A Glacial Box Valley in Hohe Tauern
LOW // ACCESS
length exhaustion: The 14km round trip is longer than it appears on a map, especially for families with small children.

Required Gear Comparison

Terskey Alatau & Ala-Köl Lake
Sturdy waterproof hiking bootsGore-Tex outer shell and thermal layersTrekking poles (Essential for the passes)High-altitude 3-season sleeping bag and tentBackpacking stove and fuelWater purification (many streams pass livestock areas)Small bathing suit and towel (for the hot springs)
Prossautal — A Glacial Box Valley in Hohe Tauern
Light hiking shoesSun protectionWater bottleCameraLight fleece (the valley is shaded and cool)

Compare with Other Routes

argentina
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EXPERT // HAZARD
argentina
Perito Moreno Glacier Trail
EXPERT // HAZARD
austria
Highway Lakes — Blindsee & Weißensee
LOW // ACCESS
austria
Graukogel — Pine Forests & strenuous Ridges
EXPERT // HAZARD
austria
Hochkeil — The Hidden Panorama
LOW // ACCESS
austria
Liechtensteinklamm — The Helix Chasm
LOW // ACCESS