File:Brunhes geomagnetism western US.png

Approximate times of some of the most commonly reported geomagnetic excursions of the Brunhes Normal Polarity Chron. Source: U.S. Geological Survey Open-File Report 03-187 http://geopubs.wr.usgs.gov/open-file/of03-187/
 * Highlighted excursions are those most likely to be found in the western U.S.
 * Possible correlations of these to a sketch of the relative paleointensity curve of Guyodo and Valet (1999) are suggested.
 * VADM = virtual axial dipole moment.
 * Vertical dashed line is the critical value of intensity below which Guyodo and Valet (1999) consider several directional excursions to have occurred.