The U.S. portion of the region was organized as Oregon Territory on August 14,1848, with the British portion remaining unorganized until 1858 when the Colony of British Columbia was declared as a result of the Fraser Canyon Gold Rush and related American annexationist intentions.
The U.S. portion of the region was organized as Oregon Territory on August 14,1848, with Washington Territory being formed from it in 1853. The British portion remaining unorganized until 1858 when the Colony of British Columbia was declared as a result of the Fraser Canyon Gold Rush and related American annexationist intentions.