10/24 79107 Pr. Georges VAHT CLUB POINT B Calvert or Agvia on wh. KP KP Red & grey MOTTLED CLAY PATAPSCO T Calvert or Agvia - 4' of lay gravel in dark grey SITS? MATRIX. JAROSITE & Gypsum in dark grey SITS. 79107 Bluff s.e. of Fort WASHINGTON P.G. Co. Md. w. A. Powell J. Skoo 10' wh. Weathered PATAPSCO CLAY & UNCONFORMABLY overlain by 13' DARK GREY MONMOUTH FM. BASAL 4-8' GRAVEL BED w/ very qtz pebbles. DARK grey, silty, outer part w/ gypsum & Jarosite. No plants. MT. VERNON 7 1/2 QD. 2630 m W of E body 5145 m S of N body p 11, Ref GLASEN, J.P. 1971 Geol. & min. Res. of SOUTHERN MD. Md. GEOL SUR. RES. #15