National Park Service Glacier Survey Reports

The National Park Service (NPS) conducted glacier surveys in Rocky Mountain National Park (RMNP), Colorado, beginning in 1932. This collection of glacier surveys covers the years 1932-1952. Most of the reports include several glacier photographs. Copies of the original reports are held in the NSIDC Analog Archives. You can access the photographs, or entire reports, using the listings below.

Glacier photographs in the reports are also included, individually, in our Glacier Photograph Collection. When searching in the Glacier Photograph Collection, note that the first eight digits of the Glacier ID, provided in the search results, are coded to match the photographs to the original report. The Glacier ID will start with a four-digit park code, then a four-digit year. For example, the glacier identifier of "rmnp1939_andrews190901" refers to a photograph of Andrews Glacier, taken in 1909 and included in the RMNP 1939 report.

To cite photographs from the Glacier Photograph Collection, please see "Citing These Data" in the documentation. For more information about the NPS Glacier Survey Reports special collection, see the section on NPS Glacier Survey Reports in the documentation.

Select a Report

To download a glacier survey report, click the link following its name.

To view and download only the report’s photographs from our Glacier Photograph Collection, check one or more reports, then click Submit. Note that some reports do not contain glacier photographs, as indicated by a disabled checkbox.