220 GEORGE W. STOSE 



limestone of the valley; that they appear to be in comformable 

 sequence with dips varying from low west to steeply overturned; 

 and that, if faulting occurs along these lines, it is of minor impor- 

 tance. The fault producing the deep re-entrant valley of East 

 Branch of Little Antietam Creek and the corresponding offset of 

 the ridges, a thrust of considerable magnitude, does not follow the 

 front of the mountain, but strikes at an acute angle into the valley. 

 The same is true of the crushed and faulted zone north of Cono- 

 cocheague Creek. 



