Of igneous rocks I see more other than any dense fine rock that occurs but 3 times in hundreds up to one foot across. I last saw one little piece rounded about 2 by 4 inches of a decidedly silicified quartzite. These may be of Pre-Cambrian age. Later on saw more quartzites and it appears that they are quite of Cambrian age. Half are the material is of Devon Cambria age making most of the Boulder, quartz emulating the basal formation, followed by the sandstone. If these ores whole present it is not present in the conglomerate. Besides the quartz there one mass of hard sandstone a quartzite that fits into a cave. One face is 27 yards long and the other 14 at the thickness that we can see is not less than 30 feet haven't a square piece of it. [This is the Laramie Mountain Quartzite] R. Cliff at back. All conglomerate into river All of this face is a fault face as it is situated, Cave The Large Onus 80 x 40 x 30 ft. 55. 220 yards across Trace of previous day.