- Bothner, W. A.; Kucks, R. P., 1993, Bouguer gravity anomaly maps and four derivative maps of New Hampshire, Vermont, and vicinity: Geophysical Investigation Map 1005, 6 maps on 4 sheets :col. ;121 x 100 cm. or smaller, sheets 137 x 105 cm. or smaller, folded in envelope 30 x 24 cm.,
- Jachens, R. C.; Roberts, C. W., 1993, Aeromagnetic map of the San Francisco Bay Area, California: Geophysical Investigation Map 1007, 1 map :col. ;82 x 49 cm., on sheet 94 x 79 cm., folded in envelope 30 x 24 cm.,
- Peddie, N. W., 1993, The magnetic field of the Earth, 1990; declination chart: Geophysical Investigation Map 1004-D, 1 map :col. ;63 x 100 cm., on sheet 86 x 123 cm.,
- Peddie, N. W., 1993, The magnetic field of the Earth, 1990; total intensity chart: Geophysical Investigation Map 1004-F, 1 map :col. ;63 x 100 cm., on sheet 86 x 123 cm.,
- Peddie, N. W., 1993, The magnetic field of the Earth, 1990; horizontal intensity chart: Geophysical Investigation Map 1004-H, 1 map :col. ;63 x 100 cm., on sheet 86 x 123 cm.,
- Peddie, N. W., 1993, The magnetic field of the Earth, 1990; inclination chart: Geophysical Investigation Map 1004-I, 1 map :col. ;63 x 100 cm., on sheet 86 x 123 cm.,
- Peddie, N. W., 1993, The magnetic field of the Earth, 1990; vertical intensity chart: Geophysical Investigation Map 1004-Z, 1 map :col. ;63 x 100 cm., on sheet 86 x 123 cm.,
- Roberts, C. W.; Jachens, R. C., 1993, Isostatic residual gravity map of the San Francisco Bay Area, California: Geophysical Investigation Map 1006, 1 map :col. ;82 x 49 cm., on sheet 94 x 79 cm., folded in envelope 30 x 24 cm.,
- Wojniak, W. S.; Hoover, D. B.; Grauch, V. J., 1993, Electromagnetic survey maps showing apparent resistivity of the Getchell Gold Trend, Osgood Mountains, North-Central Nevada: Geophysical Investigation Map 1003-A, 9 maps on 3 sheets :col. ;50 x 34 cm., sheets 101 x 145 cm. or smaller, folded in envelope 30 x 24 cm.,
