| Online link | http://pubs.usgs.gov/of/1999/0440/ |
|---|---|
| Description | Map showing magnetic anomaly of California composed by merging and editing data from 123 distinct surveys conducted previously. |
| Originators | Roberts, Carter W. and Jachens, Robert C. |
| Publication | U.S. Geological Survey Open-File Report 99-440 This publication is available only as a PDF document. |