Our Vanishing Glaciers
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Visualizing a Half-Century of Glacier Loss in Glacier National Park, Montana
Select Glacier ▾
Glacier Area Loss
(1966 – 2015)
→ → → Greatest
Minimum Size Criterion
(0.1 km² or ≈ 25 acres)
1966
2015
◆
Active: ( ≥ 0.1km² )
Defined as a glacier
x
Stagnant: ( < 0.1km² )
No longer defined as a glacier
Mid-19th century (Little Ice Age)
1966
1998
2005
2015
Temperature
Precipitation
Average annual air temperature
Average air temperature between
measurements
Total annual precipitation
Average precipitation between
measurements
