base of the border grey cores which stain a red brown. 3 Above this The massive buff sand lies. The 32 ft up to its concretionary layer is barren, it include many small nodules of limonitic concretions and many sand concretions from 1" to 10" across; The latter has seem to have no lithological difference from the sand except that they are more solidly indurated and are a bit grey in color. The sand is a light greyish buff, unindurated but fairly resistant to erosion. It is a medium grained sand. 4) The concretionary layer makes