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
In the know? Log-in to add a tip for other adventurers!
Sign up for free
Nearby routes
Best routes near Alta Lake
4.0
(30)
150
hikers
12.9km
03:25
120m
120m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Moderate
4.0
(26)
142
hikers
13.5km
03:35
120m
120m
Moderate hike. Good fitness required. Easily-accessible paths. Suitable for all skill levels.
Moderate
4.5
(12)
58
hikers
15.0km
04:15
270m
270m
Moderate hike. Good fitness required. Mostly accessible paths. Sure-footedness required.
Moderate
Details
Informations
Elevation 640 m
Weather
Powered by Foreca
Monday 30 March
-5°C
-15°C
-- %
Additional weather tips
Max wind speed: -- km/h
Most visited during
January
February
March
April
May
June
July
August
September
October
November
December