and worn smooth, while the opposite side of the bedrock hill has 

 fractured rocks carried away by the glacier in a process known as 

 plucking. 



Near Echo Lake north of Bigfork are old sand dunes and glacial 

 stream deposits, formed when the Swan Range acted as a barrier to 

 the transport of sand by wind. They are best exposed in a road-cut 

 along Highway 35. 



In an area drained by LeBeau Creek north of Whitefish is an 

 outstanding example of ice-scoured glacial pavement. The bedrock 

 of the area, the Belt series (partially metamorphosed sedimentary 

 rocks), was scoured by glaciers moving southeast out of Canada. 

 The glaciers transported and left behind large isolated rocks 

 known as glacial erratics because they are a different type of 

 rock than the local rock and have been transported from areas tens 

 or, occasionally, hundreds of miles away. 



Teakettle Mountain north of Columbia Falls provides a vista 

 where several geologic features can be seen at once. From 

 Teakettle Mountain one has excellent views of three fault block 

 mountains, complex folded and faulted mountains, major valleys, 

 the Rocky Mountain trench, Flathead Lake, glacial features of 

 erosion and deposition, and stream features of the Flathead River 

 on the main valley floor. 



54 



