10 July 4-1918 North Branch nearing a fault line." The brook bed continues for a few hundreds of yards and then stands critically. Above this the stream narrows quickly and cascades down over the dark darkness the Cars, having dip structures or denus to near the faulty line and here still partly, from rock. The stream is "marked and ochre" with the clearage parallel to the contact with the grinds and critical. About 50 feet farther up stream it is cut by a fine red granite porphyrite dyke about 3 feet thick which stands critically across the stream. It contains flakes of mica as big as any hand." Have a large piece of it. Far down the stream bed one sees pieces of these dikes. "This parallel dike of the same material occurs a few feet higher. About 50 feet higher up stream is a 3 foot vein of nearly pure white quartz." As float this is also seen more than mile downstream. In this upper region of the brook are boulders "of a heavy rock composed of quartz and a flake mineral." We have a sample of it. They come down from higher up in the brook. The contact of the grinds with the igneous rock comes in on this brook at about 400 feet (around) above the Ordway river, and about 1/2 miles of the brook. The contact is therefore well up in the flanks of the Long Range, rather a surprise to me. All of this shows that there is here Mr Conklin on any Oidician, it is all Clark south of Bay St. George.