Hudson's Bay Co. fort on right bank of Columbia river, six miles above its junction with the Willamette river. Built in 1824-25, under charge of Dr. John McLoughlin. Occupied as being on British territory until the treaty of 1846. The fort was maintained by the Company for several years after the Treaty, until dispossessed by U. S. military authorities in 1860. In 1847 McLoughlin was succeeded by Peter Skene Ogden who afterwards transferred the Company's headquarters to Victoria. The fort was of large size, enclosed by stockade 750 X 600 feet and had attached a 1500 acre farm. The enclosure contained the fort with dwelling houses, store-houses, servants' quarters, shops, barns &c. On the appertaining land were barns, stables and farm buildings near the main fort. Cultivated fields, pasturage, extended along the Columbia river bank for 25 miles and 10 miles back from the river, also on Sauvé and Menzie's islands. It was sometimes called Fort Columbia. Maps No. 8, 100 & 101.