|
|
|
|
|
|
|
|
|
|
|
|
1108 |
Sherbrooke-Lewiston '81 W. |
USGS |
09/81 |
0.5 mi. |
E-W |
300 AG |
162 |
IGRF80 |
OF85-501 |
|
1118 |
Glens Falls "B" '83 |
USGS |
10/83 |
0.5 mi. |
E-W |
300 AG |
4210 |
IGRF80 |
B-1887 |
|
1122 |
Glens Falls "B" '84 |
USGS |
05/84-06/84 |
0.5 mi. |
E-W |
300 AG |
2990 |
IGRF80 |
B-1887 |
|
4118 |
Sherbrooke-Lewiston '82 |
QEB |
10/82 |
0.5 mi. |
E-W |
500 AG |
4444 |
IGRF80 |
OF85-501 |
Description of Table
No.: Internal USGS
identification number
Name: Internal project name (not always the name used in
publication title)
Flown By: Company or government agency who flew the original
survey
Spacing and Dir.: Primary flight-line spacing and
primary flight-line direction
Altitude: Primary flight altitude in feet; B = barometric
elevation, AG = above ground draped over topography
LnMi.: Approximate total of line miles flown for this survey
Datum: Indicates if a regional field was removed and, if
it could be determined, the base value removed. Total field = no regional
was removed. Arb. (arbitrary) datum = the base value removed was not
stated on the map or in survey reports.
Publication: Brief publication reference*. USGS publications are listed as: Open-File reports
= OFxx-yyyy where xx is the publication year, Bulletins and Professional
Papers = B-yyyy or P-yyyy, Geophysical Maps = GP-yyyy, Miscellaneous
Field Studies Maps = MF-yyyy, Miscellaneous Investigations Maps = I-yyyy.
*For a full reference for USGS publications see: http://library.usgs.gov/