Sandstone Roof. FT. INS. Coal 1 6 Soft Shale 0 1/4 Coal 0 2 Soft Clay 0 1/4 Coal 0 1 Soft Material, mining. 1 2 Coal 0 6-1/2 Slate 0 1/4 Coal 1 0 Bone 0 1/2 Coal 0 10 Bone 0 1/2 Coal 0 5 Bone 0 1/2 Coal 0 7 Bone 0 1 Coal 0 4-1/2 Bone 0 2-1/2 Coal 1 4 Hard Slate Floor. ---------- Total 8 ft. 5-3/4 ins. _c. The Cedar River Group._--This group consists of the Cedar River mines, nineteen miles from Seattle by rail, the Renton and Talbot mines, ten miles, and the Newcastle, eighteen miles. These coals are in the same river basin, and are all high grade lignites. [Sidenote: Cedar River mines.] The first shipment made from the Cedar River mines was in July, 1884. There are two good seams here, one of which measures eleven feet. The outcrop curves from a south to a southwest strike. The dip is 20° toward the east. [Sidenote: Talbot and Renton mines.] The Talbot and Renton mines, ten miles from Seattle, are on the same seam, but, owing to faults and other causes, they have not been worked of late. The seam is seven to nine feet of good coal, resembling the Newcastle, but has a bad roof, and soon reaches water. The dip is to the southeast at the grade of 10° to 25°. The outcrop curves as at Cedar Mountain. This always bodes trouble. [Sidenote: Newcastle Mine.]