Overview
Elevation: | 3620 m / 11,877 ft |
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Max Depth: | 7.6 m |
Ave Depth: | 4.0 m |
Surface Area: | 3.000 ha |
Volume: | 121,000 m3` |
Spring-Summer Thermal Stratification: |
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Latitude: | ° ' 40.0527000° |
Longitude: | ° ' -105.6300770° |
Basin: | Green Lakes Valley |
Hydrologic Connection
Lake Above : | |
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Lake Below: | Green Lake 4 |
Environmental Data & Lake Links
Photos
Maps
- Bathymetry
- Topographic, ~ 1: 24,000
- Topographic, ~ 1: 48,000
- Topographic, ~ 1: 100,000
- Topographic, ~ 1: 200,000
Access
ACCESS PROHIBITED: The Green Lakes Valley is located within the City of Boulder Watershed, which is closed to public access.
Description
Green Lake 5 is located located above treeline. It is an oligotrophic, alpine lake with low annual primary production. Lake sediments are slightly acid and reduced, containing moderate amounts of organic matter, and the median diameters of the sediment particles lie in the medium grained silt range (McNeeley 1983). The dominant erosion process appears to be mass wasting, although additional erosion processes such as hydrostatic pressure may occur (McNeeley 1983). The upper Green Lakes valley contains little vegetation, steep rock walls and talus slopes, a valley floor of glaciated bedrock, and many permanent snowpatches, including Arikaree Glacier below the Continental Divide [Caine, 1995]. The bedrock in this area is primarily composed of Precambrian schists and gneisses, the Silver Plume quartz monzonite, and Audubon-Albion stock [Wallace, 1967]. Most of the surficial deposits are of Holocene age, accumulated since deglaciation about 12,000 years ago [Harbor, 1984]. Historically, the upper two lakes were fishless, but due to accidental stocking in 1998, Yellowstone cutthroat trout now inhabit both Green Lakes 4 and 5. The watershed receives most of its precipitation in the form of winter and spring snowfall. Green Lakes 4 and 5 are ice-free only during the short growing season from late June or early July until early to mid October.
Sample ID |
Coll. Date |
Samp Depth (m) |
Position in Lake |
Collection Type |
Citation (counts) |
Sample Notes |
# Taxa |
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citation short |
Citations -Count Data
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