WESTERN DIVISION OF TOPOGRAPHY. 
E. M. Douglas, Geographer in charge. 
CALIFORNIA. 
TRIANGULATION STATIONS. 
COLUSA AND YOLO COUNTIES. 
COPAY, COLUSA, DUNNIGAN, RUMSEY, AND WOODLAND QUADRANGLES. 
In 1905 C. F. Drquhart, topographer, extended triangulatioo ov< 
five 15-minute quadrangles in the Sacramento Valley, in cooperatil 
with the State of California. Positions are based on Y<>1<> northwe: 
base and southeast base, United States standard datum, of the Coa: 
and Geodetic Survey. 
ARBUCKLE, COLUSA COUNTY. 
Not occupied. ) 
Station mark: The spire on Baptist Church in Arbuckle, in tl 
southwest part of town, near the schoolhouse. 
[Latitude39° 00' 54.526". Longitude 122° 03' 23.352".] 
To station 
Foothill. 
StovalL. 
Franklin 
Gallup.. 
Wlllllll ll. 
56 32 48.78 
116 'M 54.06 
JIM IK 32.38 
348 04 13.70 
Back azimuth. 

, 
„ 
236 
27 
42. 49 
296 
_'l 
24.88 
39 
is 
03.97 
168 
05 
41.30 
Log. 
distance 
Meters: 
4.1478( 
1. 12601 
:;. 752(8 
4. 21091 
ASH. COL1 SA i <>[ NTY. 
On a hill in Mr. Ash's pasture, about 6 miles west and onc-ha 
mile north of Arbuckle. The road from Arbuckle to Rumsey pass) 
one-half mile south of the station, at a point about one-fourth mi 
west of the schoolhouse on Sand Creek. At this point there is 
wire gate leading into the Jones ranch, thence up old grade to tl 
fence between the Jones and Ash ranches. 
Signal: A lumber quadripod about 14 feet high. 
122 
