No	Name	Flown By	Date Flown	Spacing	Dir	Altitude	LnMi	Datum	Publication
1068	Puna Forest	USGS	03/78-04/78	0.5-1 mi.	N25W	300 AG	930	Tot.field, arb.datum	MF-1845A
1069	Mauna Loa Northeast Rift	USGS	03/78	1.5 mi.	N14W	300 AG	255	Tot.field, arb.datum	MF-1845A
1070	Mauna Loa Southwest Rift	USGS	03/78-04/78	1.5 mi.	E-W	300 AG	285	Tot.field, arb.datum	MF-1845A
1071	Hawaii '78	USGS	03/78-04/78	1 mi.	N-S	1000 AG	4337	IGRF75	GP-946

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/