Annual report of the State Mineralogist for the year ending ... . edand thirty barrels. Nos. 1 and 2 were sunk previous to 1882, and are each one hundred andfifty feet deep. No. 3 began pumping in 1882, and is two hundred andsixty feet deep. No. 4 has a twelve-inch casing at top, is one thousandfeet deep, and began pumping in January, 1886. No. 5 is eight hundredfeet deep, and began pumping in July, 1886. No. 6 is eight hundred feetdeep, and began pumping in January, 1887. Since No. 6 was started the average aggregate production of all thesewells has been about one hundred barrels per day, mos
Annual report of the State Mineralogist for the year ending ... . edand thirty barrels. Nos. 1 and 2 were sunk previous to 1882, and are each one hundred andfifty feet deep. No. 3 began pumping in 1882, and is two hundred andsixty feet deep. No. 4 has a twelve-inch casing at top, is one thousandfeet deep, and began pumping in January, 1886. No. 5 is eight hundredfeet deep, and began pumping in July, 1886. No. 6 is eight hundred feetdeep, and began pumping in January, 1887. Since No. 6 was started the average aggregate production of all thesewells has been about one hundred barrels per day, most of which comesfrom Nos. 4, 5, and 6, No. 4 being the most productive well. No. 7 is nowdrilling, with a thirteen-inch top casing, and is to-day (May thirty-first)down about one hundred and seventy-five feet. They say that they aremaking an average of about forty feet per day with it. This is the mostwesterly of all the wells here. Moreover, the grading is already done atthe site of No. 8, which will soon be started, and will be the most easterlyone of all. 74. 75 The rocks throughout this region are unaltered sandstones and shales,which often contain a good deal of lime. They generally strike about eastand west, though in some places they are greatly disturbed and the south side of the canon, where, however, the exposures are veryfew and poor, they seem generally to dip to the south, while on the northside, where the exposures are somewhat better, and where all the mostproductive wells are, they dip to the north at angles ranging from 60° tonearly horizontal, though the general average seems to be about 45°. At a point in the bluff on the south side of the canon, about oppositeWell No. 7, the sandstone seems to strike about N. 65° E., and dip north-westerly about 25°. But, in the brow of another bluff of about the sameheight, some three hundred or four hundred feet farther west, they againstrike about east and west, and dip 40° or 45° to the south. As alread
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