Figure 5. Erosional features measured at 51 individual sites included striations (non-unique flow indicators) and crag-and-tail features (unique flow indicators). A. Striations and a groove on phyllitic bedrock. B. Crag-and-tail feature in phyllitic bedrock. C. Large crag-and-tail features cut by smaller striations and crag-and-tail features. Click on the images for a larger view.