St. Albans Base Line (1891-1892)
The location of the St. Albans base line was determined in 1891 and measured in October of 1892 over the course of three nights and one day. The measurement was supervised by R. S. Woodward and was performed with metal tapes, the first time that tapes were used exclusively for a precise base line measurement, although the tapes had been calibrated and used experimentally at the Holton base line the prior year. The St. Albans base line length, reduced to sea level, was determined to be 3,870.4028 m, +/- 3.5 mm.
The triangulation for the base line net and the extended net was accomplished from 1879 to 1892 by Walter B. Fairfield and A. T. Mosman. The base line network connected to the Allegheny series along the Ivy(2)-Summersville(1) line, and connected to the Ohio series along the Piney(12)-Pigeon(13) line.
See also: transcontental triangulation, Allegheny series, Ohio series
No. |
Station |
PID |
Monumented |
Destroyed |
Designation |
1 |
Summersville (1879) |
1880 |
|
SUMMERSVILLE RESET |
|
2 |
Ivy (1879) |
1881 |
|
IVY |
|
3 |
Table Rock (1880) |
1933 |
|
TABLE ROCK RESET |
|
4 |
Holmes (1880) |
1881 |
|
HOLMES RESET |
|
5 |
Simms (1891) |
1891 |
|
SIMMS |
|
6 |
Ryan (1891) |
1944 |
|
RYAN RESET |
|
7 |
St. Albans East Base (1891) |
1893 |
|
SAINT ALBANS EAST BASE 1893 |
|
8 |
St. Albans West Base (1891) |
1893 |
|
SAINT ALBANS WEST BASE 1893 |
|
9 |
Rogers (1891) |
1893 |
|
ROGERS |
|
10 |
Coal (1891) |
1893 |
|
COAL RESET |
|
11 |
Big Rocks (1881) |
1891 |
|
BIG ROCKS RESET |
|
12 |
Piney (1880) |
1880 |
Y |
PINEY 1883 |
|
13 |
Pigeon (1880) |
1883 |
|
PIGEON RESET |