tion stations must be added 1689.60 feet, or .32 mile. The total length of the southern boundary, assuming it to be on the 42nd parallel, is therefore 369.93 miles.
There is at present no accurate measure of the length of the east boundary of the state, nor of the north boundary, which is between Oregon and Washington. The total length of the tide shore lines of Oregon, mentioned in a preceding paragraph, must not be confused with the length of the westerly shore line of the state bordering on the Pacific Ocean. The total length of the tide shore lines includes some of the shores of the Columbia River.
The most westerly point in Oregon is Cape Blanco. The triangulation station Cape, which is situated about 400 feet west of the lighthouse and very close to the edge of the bluff, is 42° 5012".422 in latitude and 124° 33'50".678 in longitude, on the 1927 datum. Cape Alava in northwest Washington is a little further west in longitude than Cape Blanco, and has the distinction of being the most westerly point in continental United States.
