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Glaciers -- Measurement, Glaciology -- Research -- United States


This report summarizes the methods used to construct an inventory of glaciers and perennial snowfields of the contiguous United States. The inventory is based on interpretation of mostly aerial imagery provided by the National Agricultural Imagery Program, US Department of Agriculture with some satellite imagery in places where aerial imagery was not suitable. The inventory includes all perennial snow and ice features greater than 0.01 km2. Due to aerial survey schedules and seasonal snow cover, multiple imagery dates were required. The earliest date is 2013 and the latest is 2020, but more than 70% of the outlines were acquired from 2015 imagery. The inventory is compiled as shapefiles within a geographic information system that includes feature area and location. The inventory identified 1331 (366.52 km2) glaciers, 1776 (31.00 km2) perennial snowfields, and 35 (3.57 km2) buried-ice features.


The data supports the article, "Inventory of glaciers and perennial snowfields of the coterminous USA," submitted to Earth System Science Data.

Click on the "Download" button to access the data description.

The supplementary data sets in this file contain geospatial data and attribute tables (Esri) format and in open source GeoJSON format. Tabular data are in excel tables (.csv).


This work is marked with CC0 1.0 Universal



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Glacier_inventory_20220929.geojson (41428 kB)
geoJSON (4601 kB)
ARC file/ esri

Glacier_inventory_20220929.csv (538 kB)
Tabular data.csv

Readme_Glacier_Inventory_20220929.pdf (137 kB)
Readme Glacier Inventory

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