DEPA-RTMIENT O!?' THIE INTERIOR. 



OUTLIlSlES 



NATURAL ARRANGEMENT 



OK THK 



FALCONIDiE. 



ROBERT RIDG^IV'A.Y. 



[EXTKACTED FKOM BTJLLETm OF THE UNITED STATES GEOLOGICAL AND- 

 GEOGEAPHICAL SURTEy OF THE TBERITORIES, No. 4, SECOND SERIES.] 



WASHINGTON: 



GOVERNMENT FEINTING OFFICE. 



June 10, 1875, 



