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Lake ice clearance and formation data for Green Lakes Valley, Silver Lake from 1981 to ongoing, yearly (variable)

Data set creator(s): T. Nelson (Nel) Caine

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Records were based on intermittent observation of the extent of ice cover on Silver Lake, Lake Albion, and Green Lakes 1-5, dependent on observers present for other reasons. Dates of freeze-up (formation), breakup (first melt or open water). and lake-ice clearance were recorded, along with visual estimates of percent ice cover at various dates prior to complete meltout in spring. The latter estimates are not included in this data set.


Study areas were Silver Lake, Lake Albion, Green Lakes 1-5, Arikaree Glacier.
Green1 40.0508, -105.6056, 3431 m
Green2 40.0494, -105.6108, 3411 m
Green3 40.0519, -105.6158, 3436 m
Green4 40.0553, -105.6203, 3566 m
Green5 40.0522, -105.6306, 3625 m
Albion   40.0464, -105.6036, 3360 m
Silver    40.0294, -105.5825, 3141 m
Original data are stored with Nel Caine.

Date Range:

1981 to ongoing


yearly (variable)


date of ice breakup, date of ice clearance, date of complete ice cover (formation)

Location: Green Lakes Valley • Silver Lake

At a glance:

Green Lakes Valley, looking west
Elevation: 3745 m
Area: 2.3233


Location Group: Green Lakes Valley, Silver Lake

Found within: Green Lakes Valley (City of Boulder Watershed)
Located in: City of Boulder Watershed
(Click to learn more about these locations)

More data from: Green Lakes Valley, Silver Lake

Core Data Set: No
Discipline: Hydrology, Climatology/meteorology

Data Citation

Caine, T. Nelson (Nel). 2017. Lake ice clearance and formation data for Green Lakes Valley Silver Lake from 1981 to ongoing, yearly (variable).

CU Boulder

This material is based upon work supported by the National Science Foundation under Cooperative Agreement #DEB-1637686. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necesarily reflect the views of the National Science Foundation.

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