SURVEY OF THE COLORADO OF THE WEST. 35 
mentioned will be necessary, but the topography should be represented 
by contour lines. 
A special map on a scale of one incli to the mile will be needed for 
the region of the U-iri-ka-ret Mountains, and another on the same scale 
for the great bend of the Grand Canon of the Colorado, south of the 
Kia-bab Plateau. 
The two latter will also be comparatively inexpensive. It will thus 
be seen that an atlas of eighteen maps will be required to properly 
represent the work which has already been accomplished. 
ESTIMATE FOR APPROPRIATIONS. 
For the preparation and publication of the work the following sums 
will be necessary : 
To complete the computation and to prepare the topographic, geological, gen- 
eral, and special maps ready for the printer by the process of photo-lithog- 
raphy $12, 000 
For the special study of fossils, minerals, and natural history collections 1, 800 
For the preparation of geological sections and other illustrations ready for the 
printer 4,000 
For the preparation of the text of the geological report ready for the printer. 3, 000 
For the preparation of the illustrations of the ethnological report ready for 
the printer * 2, 000 
For the preparation of the text of the ethnological report ready for the 
printer 3, 000 
Total 25, 800 
Should Congress decide that it is best to have the maps engraved on 
stone, it will be necessary to increase the above estimate of $12,000 to 
$ 25 , 000 . 
There is a district of country lying to the north of the region em- 
braced in the above-mentioned triangulation, and to the west of the 
belt of country explored along Green River and the upper course of the 
Colorado, and south of the country surveyed by Clarence King, of which 
little is known to geographic science. Government expeditions made 
prior to the inauguration of this survey have crossed it on two lines, 
and one of Lieutenant Wheeler’s parties has since penetrated’ the 
country for a short distance. Our own parties have crossed it by sev- 
eral other lines in an easterly and westerly direction, and traversed it for 
its entire length in a northerly and southerly direction. This was done, 
not for tiie purpose of making a survey of the country, but in order that 
we might reach the river. Yet topographic and geological facts were 
collected. It is greatly to be desired that a survey be made of this 
area. As there is but one base-line in the territory which has 
already been surveyed oy our parties, the only proof of the accuracy 
of the work rests upon the astronomic checks and the connection made 
between two separate lines of triangulation around the Kai-tab Plateau. 
If this district could be surveyed from a new base-line, and the geo- 
detic points be connected with those of the last survey, and also with 
