Several out-croppings of coal have been hitherto discovered on the
inlet, including the only anthracite, so far as known, on the Pacific
Coast. The vein is situated on the east side of Seymour Mountain,
about a mile and a half from the shore at Anchor Cove. Upwards of a
hundred thousand dollars were expended in its development by the Queen
Charlotte Coal Mining Company, chiefly in the construction of a
railway and other shipping facilities. Several tunnels were bored, the
longest to a depth of 450 feet, reaching a vein of good anthracite
coal from three to six feet in thickness, from which a vessel load was
sold in San Francisco at a good price. But the vein soon becoming
faulty, and the owners dissatisfied with the outcome from their
investment, the mine was abandoned in 1872, and before the
explorations made were sufficiently thorough to determine with much
certainty the character and extent of the deposit.