The Coconino sun., 1919-11-21
MINERAL RESOURCES OF
 NAVAJO INDIAN COUINTR Y
Continued from Page D

beds in general are thicker and more constant. There are several operat ing mines in this formation. Onr thousand, nine hundred tons a year are mined by the government for tho Keams Canyon school. A section oi this mine has been furnished tho writer by the officials of the schoo there, as follows:
 1. Coarse sandstone and conglom. crate, 190 feet.
 ?. Fine, white to gray sandstone, 3I feet.
 8. Shale, 1 foot, 6 inches.
 4. Coal, including lenses of shale, 2
 5. Shaly sandstone and shale, 5 feet, s inches.
 G. Coal containing two small lenses of shale, feet, inches.
 2. Sandstone, n feet.
 A section measured by the writer at Chichinbito gave the following:
 1. Thick bedded sandstone, esti- mated, 457 feet.
 ?. Shale, carbonaceous matter and small Tense of coal, feet, inches. 8. Thin bedded sandstone, 16 feet.
 4. Coal, foot, inches.
 5. Shaly sandstone, foot, inches. 6. Coal, including foot stratum of gray shale, 4 feet, 3 inches.
 The Marsh Pass Indian school gets it's fuel supply from a mine here, Six seams of coal have been observed in this vicinity, one nine feet in thick ness.
 Coal outcrops can be seen all around the mesa, often ranging from three to five feet in thickness, one or two seams even exceeding this. The re- zion is so far untouched. Professor Gregory of the U. S. geological survey and many other geologists estimate that this field contains S,000,000 short tons of workable coal. And it is the writer's opinion that it will probably exceed that amount.
 Petroleum has been found at two places in the Navajo country-at Seven Lakes, on the Chaco plateau and at Goodridge in the San Juan val ley.
 Seven Lakes Oil Field
 In sinking a we'll for water in 1911 in Section IS, Township IS north, Range 10 west, New Mexico Principal meridian, Henry F. Brock found both oil and gas. Following the discovery, more than 2,500 claims were located in the surrounding region and drilling was at once began, but year later only six wells containing oil or gas had been found, and these not in quantity to justify exploitation. Some of the wells were drilled to a depth of 600 feet, the oil being found in ka MAgoxyorla fn, 1of Ctrnn fhnn no work has been done in the region.
 The San Juan Oil Field
 A MT. E. L. Goodridge discovered oil on the north side of the San Juan river about 40 miles below Bluff, Utah, in 1882, and staked a claim on the site. Drilling, however, was not begun till in 1907. By the end of 1911 twenty-seven wells had been drilled, nine of which struck producing oil at a depth of about 225 feet in what is known as the Goodridge sand series of Pennsylvania age. There are five sandstone stratas in this se- ries, all of which are oil proGucing The work was then abandoned, as there was not sufficient. oil.
 All the drilling was ione in a syn olinal trough between Raple and Mutten Butte anticlines least and west anticlines). Much of it was poorly done from what one can learn at this late date, as tools were lost in nearly every well drilled and some of the holes had to be abandoned on ac- count of this dropping of the tools into them. Again, the wells were all sunk within a short radius of the deep-cut canyon of the San Juan, which prob ably drained the oil from the field. Again, as the region south of the river is Navajo lands and was then forbid den territory, the drilling was all on the north side of that river. As the formations on both sides of the streams are very much the same, both as to strata and dip, the oil should be found on the south side also; and all geologists who have examined the re- zion so expect it.
 The oil soaps are found between what is known as west anticline and east anticline between Cedar Mesa and Comb Ridge, in a region drained by Limestone creek on the north side of the San Juan. The exact same for nations and conditions exist with slight notifications in the region by Gypsum creek south of the San Juan. Moreover, Comb Ridge extends on southwestward to Kayenta and on to Marsh pass in the Navajo lands and Cedar Mesa seems to merge into the Segi Mesa toward the same pass. As the conditions are practically the same in the interspace between these two ridges, Comb Ridge and Cedar (Segi) Mesa, from Goodridge Coil dis trict) on the San Juan to Marsh pass, a distance of more than 50 miles, and there is no deep river canyon to sap the, oil, there seems to be no reason why producing wells could not be ob- tained in this region, And it is the