Twila Moon

Uncovering Details of Glacial History by the Marks Left on the Land part of Vignettes:Vignette Collection
Glaciers can be thought of as large rivers of ice. One of the key elements that separates a glacier from an ice field is that a glacier more actively moves through the landscape, the mechanical properties of the ...

Rock Glaciers Move Mountains - Perhaps Right Under Your Skis part of Vignettes:Vignette Collection
What is a Rock Glacier?A rock glacier is an geomorphic feature that includes ice and talus. An "active" rock glacier meets two important criteria: 1) it contains ice currently and 2) it is moving and ...