[en] The Tyler quadrangle of eastern Texas and westernmost Louisiana lies within the northern Gulf Coastal Province. The area contains portions of the East Texas-Athens Embayment, and the Sabine Uplift which strikes NW through the NW corner of the area. Eocene neritic sediments are dominant, though Cretaceous platform deposits are exposed in the extreme NW corner. Available literature shows no known uranium deposits (or occurrences) within the quadrangle. One hundred thirty-six groups of uranium samples were defined as anomalous and discussed briefly in this report. None are considered significant. Most appear to be of cultural origin. Magnetic data in the quadrangle are dominantly low frequency/low amplitude wavelengths, which suggests that sources may be extremely deep