Annual report of the United States Geological Survey to the Secretary of the Interior . DALL.] SHUMAGIN ISLANDS. 809 On tlie western edge of Nagai similar rocks exist above the nieta-morphic schists and quartzites, but tbey are greatly altered and con-torted and cover but a small area in comparison with underlying is probable that part of the island of Sannakh is composed of similarstrata. John Dix, above mentioned, worked at getting out coal from the Ungabeds for some years. Messrs. Henry and Alexander Tibbey have since. Fig. 25.—Sketch of Zacharefiskaia Bay, Unga Island, Shuniagins,
Annual report of the United States Geological Survey to the Secretary of the Interior . DALL.] SHUMAGIN ISLANDS. 809 On tlie western edge of Nagai similar rocks exist above the nieta-morphic schists and quartzites, but tbey are greatly altered and con-torted and cover but a small area in comparison with underlying is probable that part of the island of Sannakh is composed of similarstrata. John Dix, above mentioned, worked at getting out coal from the Ungabeds for some years. Messrs. Henry and Alexander Tibbey have since. Fig. 25.—Sketch of Zacharefiskaia Bay, Unga Island, Shuniagins, showing location of lignite beds. located on the bay, and have taken out small quantities of coal fromtime to time, which has been sold for local purposes. The water on thewest side of the bay is shallow, and in going ashore with a small boat toexamine the workings, August 8, 1895, we found hardly water enoughhalf a mile from the beach to float the boat. The Messrs. Tibbey have been interested in these mines for nineyears and have been resident here for two years. Their workingswere half a mile farther south than the point where the section given 810 REPORT ON COAL AND LIGNITE OF ALASKA. was taken, but the succession of the strata is essentially the tunnels had been made. That at the lower level had beenpushed 150 feet, but being poorly timbered, had caved in. The nextabove, corresponding to No. 11 of the section, showed an 18-inch seamof dull coal fairly free from slate; above this were half a dozen smallsea
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