At about 17' from base scattered red brn, weather slightly to fairly cllc coucs begin. Fairly persisted layer at 23' from base. Conc zone starts about 12 feet from top, forms local bench or bnslop. At top of unit is fs conc, layer of large purple-brn conccs with golden calcite. This layer = layer at top of unit (D), Section I. This may be upper of 2 layers concs, second coming in 2' below it.