Show MAPPING RE of the the chief united topographical state states ceol geological og tri celin our r vey ti is to mke make a irve of 1 I the deep narrow gorges of the marble able and nj grand canyon canyons of the colorado river the in 08 t dangerous and erous in the world lie ile will be in charge of a party arty of ten map makers ro apa geologists awn 0 0 fists and boatmen who will go down the most dangerous dan gerou section of the th river in specially constructed boat boats these will b he fitted with air chamber chambers the men are strapped in R little cockpit in the center of or these craft wearing life preservers at all sill time times and nd provided with lore lorg life rope ropes the distance to be explored covers about mile north ern arizona the mapping of the colorado hai has been in progress pr oRre ince since 1009 1909 but the dangerous part has been left for the last when the party dictum thu this fall they will have completed comple tid records of the lope and topography of the entire stretch stretch of river ri veran an of about 1200 miles on the colorado and green river rivers and beveral hundred miles of the principal tributaries four of the specially boat will be used manned by the most skillful boatmen to be ob ind in that lection section all experienced ed lit iii shooting hooting rapids rapids the rapid rapids in this edtion 0 of the river form soma of the ui wildest water in the unit d state mattes end and each member cf ef the party hal hi been elected selected for his fearlessness in the face fact of danger as well as for his ability aa As scientist part cf of the work will consist of locating available dam sites in view of the proposed cow com of the colordo SL tribune |