674 H. B. PATTOK ROCK STREAMS OP VETA PEAK, COLORADO 



itself in parallel running ridges and troughs and that in snch cases the 

 trend of the ridges is invariably down hill, and that the rock fragments 

 show a strong tendency to stand on edge. This occurs in places where 

 glacial action as well as landslides are out of the question, but where snow- 

 drifts lie till late in the summer. In such cases the only explanation 

 that has occurred to the writer is that the arrangement is due to a slow 

 creep of the rock fragments caused by the snow melting by day and 

 freezing by night. 



