wilson etal.] TEXAS MONTANA. 115 
Feet. 
Drakes Creek, T. 16 N., R. 27 W., sec. 32; 500 feet east of post-office, in 
south face of natural ledge of rock on Aurora road, 300 feet east of 
junction with Huntsville road; aluminum tablet, marked "1284 
FTVL"' 1,286.070 
Hindsville, T. 17 N. . R. 27 W., sec. 16, center of north half of; iron 
post, marked " 1366 FTVL " _ 1,367.527 
Clifty, T. 18 N., R. 27 W., sec. 26. northwest } of; 1,300 feet north of 
Parker's ford of War Eagle Creek, in east face of natural ledge of 
granite on west side of Hindsville-Clifty road; bronze tablet, marked 
"1218 FTVL" 1,219.663 
Canuck, T. 19 N., R. 27 W., sec. 33; 10 feet east of building owned by 
Sam Cook, in south face of ledge of natural rock and southeast corner 
of post-office: aluminum tablet, marked " 1497 FTVL " 1, 499. 138 
War Eagle. T. 19 N., R. 28 W., sec. 34, near southeast corner of; 180 
feet north of post-office, 40 feet east of old building, in west face of 
ledge of natural flint rock; bronze tablet, marked " 1156 FTVL " .... 1, 157. 233 
Spring Valley, T. 17 N., R. 28 W., sec. 2; 70 feet west of post-office, 5 
feet north of spring owned by A. Sanders, in south face of ledge of 
natural limestone rock; copper bolt, marked " 1301 FTVL " 1, 302. 225 
ROCKY MOUNTAIN SECTION OF TOPOGRAPHY. 
In this section, under the direction of Mr. E. M. Douglas, geog- 
rapher in charge, spirit leveling was continued for the control of the 
regular topographic work executed during the year in the various 
localities as listed below. In addition, leveling was carried on in the 
following localities during the year 1900, but as the field work in these 
localities is not yet completed the results will not be published until 
later : 
Texas — Grayson, Fannin, and Lamar counties. 
Utah — Salt Lake, Summit, and Wasatch counties. 
Montana — Teton, Silverbow, I >eer Lodge, Powell. Lewis and Clarke, 
and Jefferson counties. 
Wyoming — Uinta County. 
TEXAS. 
ERRATA IN PREVIOUS REPORTS. 
To the elevations listed in the Appendix to the Twenty-first Annual 
Report, pages 483-486, derived from a bench mark of the Fori ted 
States Coast and Geodetic Survey at Fort Smith, Ark., add 1.660 feet 
to raise them to the corrected elevation of that bench mark as derived 
by the latest adjustment of that survey. 
MONTANA. 
MISSOULA AND RAVALLI COUNTIES. 
Bonner Quadrangle. 
The elevations in the following list are based on a tablet set on the 
right side of entrance to the First National Bank building, Missoula, 
Mont., and marked "3201 T." 
