U. S. GEOLOGICAL SURVEY 



PROFESSIONAL PAPER 129 PLATE XLV 



EXPLANATION 



Recent stream dej*o«ita, valley 



fill of unconBolidated or lo- ^ 



cally consolidated gravel and * 



flsnd. and older somewhat con- z 



sulidated und disturbed beds * 



in and near the mountains. - 



L , ; 



Lava, tulT. Hgglomerate, and 1 



related fine-grained intrusive ^ 



rocks, and subordinate amounts w 



of sedimentary beds of arkoae. *" 

 sandstone, shale, and calcare- 

 ous rocks. 



Granitic rocks intrusive in bual Siu 



complex. 0.S 



o. 



iGranitii Qttnmii. t. , » - _i 



phoiHd ^arlnt*. lim«f<nu. unit dola- V ^ *'' 



■nit*. tnrliKt** aUo *mall amoMnlt 0) , uJuj 



latfr nrka. parlmtJarf w vndiffrrtn- , Ot a. 



tiaUd tntmnrtU »■ 



NOTE White areis IHt uncolorM 

 lor lack of information 



Baial complex. 



» pa4K\ xf-^ 



RECONNAISSANCE (iE()L()(iIC MAT OF LOWER GILA REGION, ARIZONA. 



By ('lydf 1", Rosa 

 Scale BDBiooC 



1!)21 



