The timbered lands of Washington are approximately estimated at 20,000,000 acres, and the prairie lands cover an area equally great. The forests embrace the red and yellow pine of gigantic growth, often attaining the height of three hundred feet, and from nine to twelve feet in diameter. It is said that a million feet have been cut from a single acre! Says the Commissioner, "The soil in the river-bottoms is thinly timbered with maple, ash, and willow. These lands yield heavy crops of wheat, barley, and oats, while vegetables attain enormous size. The highlands are generally rolling, and well adapted to cultivation.... The average yield of potatoes to the acre is six hundred bushels, wheat forty, peas sixty, timothy-hay five tons, and oats seventy bushels" (p. 199). Mr. Roberts, who explored this region last year, says that the great plain of the Columbia is "a high rolling prairie, covered everywhere abundantly with bunch-grass to the summits of the highest hills; treeless, excepting along the streams. This is an immense grazing area of the most superior character, interspersed with the valleys of perennial streams, along which are lands that, when settled by industrious farmers, will be of the most productive character, as we have seen in the case of a number of improvements already made; while the climate is not only salubrious, but remarkably attractive" (Report, p. 19). He gives this estimate of the area suited to agriculture and grazing:-- "In Washington Territory alone, on its eastern side, there are at least 20,000 square miles, or 12,800,000 acres of the finest grazing-lands, on which thousands of cattle and sheep will be raised as cheaply as in any other quarter of the globe, and this grass is so nutritious that the cattle raised upon it cannot be surpassed in their weight and quality. Snow rarely falls to sufficient depth to interfere seriously with their grazing all through the winter. Such may be taken as a general view upon this important point, respecting a Territory nearly half as large as the State of Pennsylvania" (p. 19). Along the shores of Puget Sound, and on the island of Vancouver, are extensive deposits of bituminous coal, conveniently situated for the future steam-marine of the Pacific. Large quantities are now shipped to San Francisco for the use of the Pacific mail-steamers. Not only in Washington, but up the coast of British Columbia, the coal-deposits crop out in numerous places. An explorer on Simpson River, which next to the Fraser is the largest in British Columbia, thus writes to Governor Douglas: "I saw seams of coal to-day fifteen feet thick, better than any mined at Vancouver" (Parliamentary Blue-Book).