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OFR 99–0557: California Digitized Aeromagnetic Projects
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No
Name
Flown By
Date Flown
Spacing
Dir
Altitude
LnMi
Datum
Publication
0021 Mother Lode '51 USGS 09/51 0.5 mi. E-W 1000 AG
2625
 Tot.field, arb.datum GP-561
0028 Kramer USGS 02/54 0.25 mi. N-S 500 AG
1497
 Tot.field, arb.datum GP-680
0034 San Francisco Bay USGS 03/50-08/51 1 mi. E-W 1000 AG
1120
 Tot.field, arb.datum 71-294
0035 Searles Lake USGS 07/53 1 mi. E-W 3100 B
265
 Tot.field, arb.datum GP-695
0182 Garlock '55 USGS 07/55 0.5 mi. N-S 750 AG
2066
 Tot.field, arb.datum GP-695
0242 Long Valley '561 USGS 08/56 1 mi. E-W 9000 B
1020
 Tot.field, arb.datum GP-329
0271 Black Mountains (Death V.) USGS 06/57 1 mi. N-S 7000 B
260
 Tot.field, arb.datum GP-428
0273 Garlock Extension USGS 06/57 1 mi. NW-SE 750 AG
255
 Tot.field, arb.datum GP-695
0306 San Francisco ARMS '582 USGS 10/58-11/58 1 mi. NE-SW 500 AG
5000
 Tot.field, arb.datum GP-574
0329A Los Angeles ARMS South USGS 05/59 1 mi. N-S 500 AG
2000
 Tot.field, arb.datum GP464,465,466
0329C Los Angeles ARMS North USGS 05/59 1 mi. N-S 500 AG
1600
 Tot.field, arb.datum GP-695
0331A San Francisco ARMS N. '592 USGS 04/59-05/59 1 mi. NE-SW 500 AG
2500
 Tot.field, arb.datum GP-574
0331B San Francisco ARMS S. '592 USGS 04/59-05/59 1 mi. NE-SW 500 AG
2500
 Tot.field, arb.datum GP-574
0484 Little Antelope3 USGS 08/56 0.5 mi. E-W 9000 B
60
 Tot.field, arb.datum JGR v.81
0509 Stonyford1 USGS 10/62 1 mi. E-W 7000 B
1080
 Tot.field, arb.datum B-1495
0522A Sierra Nevada '63 West1 USGS 10/63 1 mi. E-W 2500 B
1285
 Tot.field, arb.datum GP-657
0522B Sierra Nevada '63 Central1 USGS 10/63 1 mi. E-W 8000 B
490
 Tot.field, arb.datum GP-657
0522C Sierra Nevada '63 East1 USGS 10/63 1 mi. E-W 13,500 B
1285
 Tot.field, arb.datum GP-657
0605A Garlock West '67 USGS 05/67 1 mi. E-W 6000 B
135
 Tot.field, arb.datum GP-695
0605B Garlock East '67 USGS 05/67 1 mi. E-W 6000 B
1525
 Tot.field, arb.datum GP-695
0618 Mother Lode North USGS 09/67 0.5 mi. E-W 1000 AG
2280
 Tot.field, arb.datum GP-671
0677 High Sierra4 USGS 04/70 1 mi. E-W 14,000 B
1600
 Tot.field, arb.datum B-1371A
0678 Trinity Alps USGS 04/70 1 mi. E-W 8500 B
1152
 Tot.field, arb.datum B-1371B
1007 Clear Lake '72 USGS 05/72 1 mi. E-W 4500 B
1044
 Tot.field, arb.datum 73-299
1019 Southeastern California1 USGS 03/73-04/73 1 mi. E-W 9000 B
4152
 Tot.field, arb.datum 75-052
3002A Western Nevada LKB 02/67-05/67 1 mi. E-W 9000 B
16440
 Tot.field, arb.datum OF67-224-255
3002B Western Nevada - Tahoe LKB 02/67-05/67 1 mi. E-W 11,000 B
780
 Tot.field, arb.datum OF67-232,237
3002C Western Nevada - Aurora LKB 02/67-05/67 1 mi. E-W 11,000 B
1080
 Tot.field, arb.datum OF67-224,230,254
3002E Western Nevada - Inyo LKB 02/67-05/67 1 mi. E-W 15,000 B
440
 Tot.field, arb.datum OF67-226
3067 Coso Hot Springs '75 Aerial 03/75-04/75 1 mi. N-S 7000 B
1000
 POGO, 50882 76-698
4148 Central Sierra Nevada Aero ?/56 0.37-.75 mi. NE-SW 500 AG
4585
 Tot.field, arb.datum 84-216
CA01A Coastal California N. Gulf ?/54 1 mi. NE-SW 3000 B
3000
 Tot.field, arb.datum CA B-190+
CA01B Coastal California S. Gulf ?/54 1 mi. NE-SW 3000 B
350
 Tot. field, arb. Datum GP-932
CA03C Modoc North-central Aero? ?/57 2 mi. N-S 7000 B
825
 ? CA78-13A
CA03D Modoc South-central Aero? ?/57 2 mi. N-S 8000 B
600
 ? CA78-13A
CA03E Modoc East Aero? ?/57 2 mi. N-S 9500 B
1000
 ? CA78-13A
CA06A N. Great Valley - Northeast Aero? ?/51 1 mi. E-W 3500 B
1800
 ? CA78-13D
CA06B N. Great Valley - Southeast4 Aero? ?/51 1 mi. E-W 2500 B
5500
 ? CA78-13D
CA06D N.G.V. - Northwest Aero? ?/51 1 mi. E-W 4500 B?
500
 ? CA78-13D
CA06E N.G.V. - Newville Aero? ?/51 1 mi. E-W 3500 B?
275
 ? CA78-13D
CA06F N.G.V. - Stony River Aero? ?/51 1 mi. E-W 4500 B?
475
 ? CA78-13D
CA06G N.G.V. - Wilbur Springs Aero? ?/51 1 mi. E-W 5000 B?
800
 ? CA78-13D
CA06H N.G.V. - Mt. Vaca Aero? ?/51 1 mi. E-W 4500 B?
600
 ? CA78-13D
CA08A North Coastal Area Fairchild 12/64 0.5-1 mi. N30E 500 AG
1500
 Tot.field, arb.datum CA78-13E
CA08B North Coastal Area SE Fairchild 12/64 0.5-1 mi. N30E 500 AG
200
 Tot.field, arb.datum unpub.
CA09 North Coastal Extension Fairchild 12/64 0.5-1 mi. NE-SW 500 AG
150
 Tot.field, arb.datum CA78-13E
CA26 Twenty-Nine Palms Aerial 09/82 1 mi. N-S 1000 AG
1570
 ? unpub
CA27A Offshore S. CA-South5 ? 1961 1 mi. NE-SW 2500 ASL?
23700
 regional field 93-520
CA27B Offshore S. CA-North5 ? 1961 1 mi. N-S 2500 ASL?
5200
 regional field 93-520

1 Projects 0242, 0509, 0522a, 0522B, 0522C, and 1019 are incomplete. The missing data are superceded by digital data or another digitized data set.
2 Projects 0306, 0331A and 0331B are fully merged.
3 See Project 0242. Project 0484 is fully merged with 0242.
4 Project 0677 and CA06B are incomplete. Only parts of 0677 and CA06B were digitized.
5 Project CA27A is fully merged with CA27B.

Click on the individual survey numbers that are of interest to download ASCII XYZ file to your hard drive or click on the name to view a point plot.

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.
Publication: Brief publication reference*. USGS publications are listed as: Open-File reports = xx-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, Unpub = unpublished data, refers to all or part of the original project area.

*For more complete references see: Hill, P. L., 1991, Bibliographies and location maps of publications on aeromagnetic and aeroradiometric surveys for the states west of approximately 104° longitude (exclusive of Hawaii and Alaska): U.S. Geological Survey Open-File Report 91-0370-A, 172 p. 

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Further information about aeromagnetic data from the state of Kentucky can be obtained by contacting Pat Hill, (303) 236-1343, email (pathill@usgs.gov), or Bob Kucks, (303) 236-1405, email (rkucks@usgs.gov), or click the button below.
 

Map of Composite 
and Merged 
Aeromagnetic Data for 
California
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This report is preliminary and has not been reviewed for conformity with U.S. Geological Survey editorial Standards. Use of brand names is for descriptive purposes and does not constitute endorsement by the U.S. Geological Survey.

Last modified 9/14/1999.

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