^Governments of the United States and the United Kingdom. Oregon Treaty. [2023-07-21]. (原始内容存档于2023-06-24).
^Hayes, Derek, Historical atlas of the Pacific Northwest: Maps of exploration and discovery British Columbia, Washington, Oregon, Alaska Yukon, Sasquatch Books, 1999, ISBN 978-1-57061-215-2使用|accessdate=需要含有|url= (帮助)