Captain George Vancouver, already referred to, who named Vancouver Island, had among his officers a Lieutenant Puget. From him came the name of Puget Sound, stretching eighty miles southward from Vancouver Island and the Strait of Juan de Fuca into Washington State, ramifying into many bays and inlets, and having numerous islands. The Sound covers two thousand square miles and has eighteen hundred miles of coast line, being a splendid inland sea with admirable harbors. Its peculiar configuration makes very high tides, sometimes reaching twelve to eighteen feet. At the entrance near the head of the Strait of Juan de Fuca is the United States port of entry, Port Townsend, in a picturesque situation with the large graystone Custom House on the bluff, a conspicuous structure. Three formidable forts, Wilson, Casey and Flagler, guard the entrance from the sea. Opposite, on the eastern shore of the Sound, is Everett with a fine harbor, the terminal of the Great Northern Railway. To the northwest, a sentinel outpost of the Cascade Range, rises Mount Baker, nearly eleven thousand feet high. To the southward, on the circling shores of Elliott Bay, is Seattle, named after an Indian chief and founded in 1852, built on a series of terraces rising above the water, the chief commercial city of Puget Sound, and having sixty thousand population. On the southeastern arm of the Sound, called Commencement Bay, is Tacoma, the terminal of the Northern Pacific Railway, with fifty thousand people. Its Indian name comes from its great lion, Mount Tacoma (sometimes called Rainier), a giant of the Cascades, rising fourteen thousand five hundred and twenty feet, and in full view to the southeast of the city. Fourteen glaciers flow down its sides, the chief one, Nisqually Glacier, seven miles long, on the southern slope, being considered the finest on the coast south of Alaska. This mountain, like other peaks of the Cascades, is an extinct volcano, its crater still emitting sulphurous fumes and heat. Mount St. Helens, not far away, which was in eruption in 1898, is regarded as the most active volcano in the range, its massive rounded dome rising over nine thousand feet. Across on the southwestern shore of Puget Sound is the capital of Washington State, Olympia, with five thousand people.