PG. 154 Sept. 2, 1958 Iron Mt. Ranch. Sect. 42 - measured up cliff to west of Iron Mt. at a point due west of southern most portion of Iron Mt. Lower Slope covered by Terrva Blocks. 1) Conglomerate, limestone and chert pebbles up to 8" diameter, 5'-10' beds; pebbles have Triticites and possibly Schwagerina (or Kansinella) in them. 22'. 2) Limestone, medium gray weathering, thin bedding (1" to 1') even bedding surfaces, Fetid fossiliferous on bedding planes. A few brachs, bryozoans and fusulines, but mostly crinoid columnals - a frag. limestone sand-well cement. Collection 9/2/58/1 - 55'. 3) Limestone with increasing % of pebbles and cobbles, still much like 2 except 1'-3' beds. Collection 9/2/58/2 - loose on slope at base of interval, 2" diameter crinoid columnals are common in this interval, fine gravel size dominate, a few 2"-3" pebble. Collection 9/2/58/3 upper 10'. 78'. PG. 155 4) Limestone conglomerate. 10" to 12" diameter, Bacceninella beds, 2.5" crinoid columnals - 12'. ("Hess Ledge")? 5) Dolostone - light tan weathering, molds of fossils, massive, 55' grades laterally into fossil hash, (silicified) fault at top of ridge, general NNE strike, vertical filled with calcite - rocks on either side are of same lithology but beds don't match too well above fault. 6) Limestone shell hash, weathers saccordal and dolomitic like 5) 15' top of slope. 7) Siltstone, orange-brown, with brown siliceous bands (2"-4"), makes back slope - This is Leonard! Dip 14° to the N40W. This upper limestone can be traced into the cliff behind Decie's double windmill (Sect. 22) King's first Leonard limestone pinches out NE of Sullivan Ranch Road (second ridge former north of road). PG. 156 9/2/58/4 - Gaptank fm, dark limestone, thought it was Dimple at first, rests on greenish-gray sand and siltstone sequence - looks dark enough to call Tenus but is probably Haymond. All badly folded and faulted. At southwestern end of hill, a brown chert conglomerate rests directly on folded, east dipping Dimple. Sect. 43 (dip 14; N50E strike) Dimple, Caballos (and a thin if any Tenus) are folded, but not badly faulted. Axes of folds here are N70E.