Tips
Hubert Trapp
August 14, 2025
Hiking
Alta Lake was formed by glacial retreat and subsequent sediment deposition, creating depressions that filled with meltwater. Alta Lake and other nearby lakes, such as Green Lake, are part of a large watershed whose waters flow north to the Lillooet River and south to the Cheakamus River.
Historically, water flowed both north and south from Alta Lake, which lies at the top of the pass. This natural dual drainage system of the lake ended with the arrival of settlers.
fireandicegeoregion.ca/geosite/whistler-valley-lakes-and-watershed-divide
Historically, water flowed both north and south from Alta Lake, which lies at the top of the pass. This natural dual drainage system of the lake ended with the arrival of settlers.
fireandicegeoregion.ca/geosite/whistler-valley-lakes-and-watershed-divide
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Nearby routes
Best routes near Alta Lake
4
hikers
16.0km
04:19
180m
180m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Moderate
4.0
(34)
175
hikers
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Moderate
4.1
(38)
209
hikers
11.4km
03:01
110m
110m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Moderate
Details
Informations
Elevation 640 m
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Saturday 15 August
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8°C
14 %
Additional weather tips
Max wind speed: 6.0 km/h
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