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. . . 002206 CIU.nER I GEi:ERP-.L DISCUSSIOnS A land classification ourvey in the Yan~a-,fuite project area was con- d-.!cted by tl1e Bureau of Reclamation during 1935-56 as a part of the ceneral Colorado Ba5i~ investigations. A preliminary inventory of possible water resource d.evelopments, based. on the d.ata then available, vas included in tIle ilureau of Reclamation I s basin-type report of ~larch 1946 entitled "The Colorado Hi vel''', published as House Document 419, 80th ConGTess, 1st Ses- sion. Present investigations Present reconnaissance investigation!! lending to this repol.t on the YaL'!pa-llhite project were initiated in Fiscal Year 1953. Available data from previous investigations--private, State, and Federal--were utilized where applicable. These include stream-gaCinG record.s and topoC>t'aphic Il:lCl planimetric maps that vere prepared and published by the State of Colorauo; Forest Service, United states Department of A~iculture; and GeoloL~cal Survey, Unit€d States De-partment of Interior. The investi,:;ation to date has been eenerally of a reconnaissance r,ature. Field work has included reconnaissance land classification surveys in areas ""lere lanu "as deemed the limitinG factor for development; fly line S=V2YS of cllnal lines; topo::;raphic surveys of reservoir and dam sites; Geolo[;lc e"aminations of storage and diversion dam lJi tes, canal alic;nrnents, and potential sources of constructioll materials; and tIle collection of data on e;:istin(l in'i;:;ation facilities and aGricultural development. Office \lor1, incluued tile pi:e'pan,tion of water supply estimates, siMulated operation s:,udies;. the makinG of dcsi[71s and cost estimates J rouch economic anal.~rscs, consideration of various alternative means of development, and tl,e prepara- tion of the report and supportinG data. Copies of the supportinc data are on file in the Bureau of Reclamation DC'Velopl1ent Office at Grand Ju.:ctio!l, Colo. 9