Act of Congress Admitting Oregon to the Union (dated February 14, 1859)
Whereas the people of Oregon have framed, ratified and adopted a constitution of state government which is republican in form, and in conformity with the Constitution of the United States and have applied for admission into the Union on an equal footing with the other states; therefore --
1. Admission of State--Boundaries
That Oregon be, and she is hereby, received into the Union on an equal footing with the other states in all respects whatever, with the following boundaries: In order that the boundaries of the state may be known and established, it is hereby ordained and declared that the State of Oregon shall be bounded as follows, to wit: Beginning one marine league at sea, due west from the point where the forty-second parallel of north latitude intersects the same, thence northerly, at the same distance from the line of the coast lying west and opposite the state, including all islands within the jurisdiction of the United States, to a point due west and opposite the middle of the north ship channel of the Columbia River; thence easterly, to and up the middle channel of said river, and, where it is divided by islands, up the middle and widest channel thereof, to a point near Fort Walla Walla, where the forty-sixth parallel of north latitude crosses said river, thence east, on said parallel, to the middle of the main channel of the Shoshone or Snake River; thence up the middle of the main channel of said river, to the mouth of the Owyhee River; thence due south, to the parallel of latitude forty-two degrees north; thence west, along said parallel, to the place of beginning, including jurisdiction in civil and criminal cases upon the Columbia River and Snake River, concurrently with states and territories of which those rivers form a boundary in common with this state.
2. Concurrent Jurisdiction on Columbia & Other Rivers--Navigable Waters to be Common Highways
The said State ...