BULL. GEOL. SOC. AM. 



VOL. 23, 1911, PL. 42 



Figure 1. — Fisher Peak, Colorado 

 A spur of the Mesa de Maya, distant 15 miles and 3,500 feet above the basal plain 



FkJIKK 2. TOYALAXft, A TYPICAL FLATEAU FLAIX, NEAR ZUXI FUEBLO, NEW MEXICO 



ILLUSTRATIONS OF PLATEAU PLAINS 



