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This topic has appeared in the trending rankings 1 time(s) in the past year. While it does not trend frequently, its appearance suggests a renewed or concentrated surge of public interest.
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Rock_glacier entered the ranking for the first time today at position #. This is its highest position ever recorded.
This topic has appeared in the English Wikipedia rankings 1 time. It first appeared on 2026-05-24 and was most recently seen on 2026-05-24.
Rock glaciers are glaciers shielded from melting by a layer of rocks, allowing them to stay frozen in locations where they would otherwise melt. They consist either of angular rock debris frozen in interstitial ice, former "true" glaciers overlain by a layer of talus, or something in between. Rock glaciers are normally found at high latitudes and/or elevations, and may extend outward and downslope from talus cones, glaciers or terminal moraines of glaciers. The early textbook 'Characteristics of Existing Glaciers' refers to the varied, sometimes confusing, names given to these features; 'stone rivers', 'rock flows', 'rock streams' and 'rock glaciers', and includes a map and two photographs of 'rock streams' from the Silverton area of Colorado from the US Geological Surveyors Ernest Howe and W Cross. About the same time, Stephen Capps was surveying in the Wrangell Mountains, Alaska and reported similar landforms in the McCarthy area. Although a variety of names seemed to have be used in the USGS at this time, it is 'rock glacier' that is now generally used.
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