The provisions of the Oregon-Washington Columbia River Boundary Compact are as follows:
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The boundary between the States of Oregon and Washington along the course of the Columbia River has not been easy to ascertain because of changes in the main channel of the river with a result that a state of confusion and dispute exists and the enforcement and administration of the laws of the two states has been rendered difficult.
The purpose of this compact is to fix with precision by reference to stations of longitude and latitude the boundary between the States of Oregon and Washington from one marine league due west of the mouth of the Columbia River to the most easterly point at which the 46th parallel of north latitude crosses said river, at which point the river ceases to form the boundary between the two states.
The boundary between the States of Oregon and Washington from one marine league due west of the mouth of the Columbia River to the point at which the last described point number of the boundary as herein determined meets the 46th parallel of north latitude at 118°59’10”.12 of the west longitude shall be as follows:
Beginning one marine league at sea off the mouth of the Columbia River at north latitude 46°15’00”.00; running thence due east to point number 1 of this description, which point is at north latitude 46°15’00”.00, west longitude 124°05’00”.00; thence from point number 1 continuing upstream in the channel of the Columbia River by a series of straight lines connecting the following numbered and described points in consecutive order.
Point North West
Number Latitude Longitude
1 46°15’00”.00 124°05’00”.00
2 46°15’51”.00 124°02’02”.75
3 46°16’17”.00 124°01’45”.80
4 46°16’59”.50 124°02’14”.40
5 46°17’28”.00 124°02’07”.00
6 46°17’33”.25 124°01’12”.25
7 46°16’41”.50 124°00’00”.00
8 46°16’03”.00 123°58’11”.80
9 46°14’19”.80 123°55’42”.00
10 46°14’06”.00 123°52’14”.50
11 46°16’09”.50 123°44’20”.50
12 46°15’01”.00 123°41’12”.70
13 46°15’33”.30 123°38’52”.80
14 46°15’23”.90 123°35’05”.00
15 46°15’38”.00 123°32’23”.00
16 46°16’14”.60 123°30’00”.00
17 46°15’46”.70 123°27’51”.40
18 46°14’23”.50 123°25’51”.60
19 46°13’10”.50 123°25’20”.50
20 46°11’29”.00 123°25’43”.60
21 46°10’47”.80 123°25’38”.00
22 46°09’01”.00 123°23’21”.50
23 46°08’33”.00 123°18’45”.60
24 46°09’04”.50 123°15’47”.20
25 46°10’00”.00 123°13’51”.20
26 46°11’20”.80 123°09’55”.50
27 46°11’11”.30 123°07’10”.90
28 46°09’40”.00 123°04’23”.50
29 46°09’24”.00 123°03’22”.40
30 46°08’38”.40 123°02’00”.00
31 46°08’06”.00 123°00’16”.00
32 46°06’20”.02 122°57’44”.28
33 46°06’17”.36 122°57’38”.295
34 46°06’14”.71 122°57’32”.31
35 46°05’02”.70 122°54’11”.00
36 46°03’37”.50 122°52’59”.50
37 46°01’53”.50 122°52’35”.50
38 46°00’52”.25 122°51’17”.20
39 45°58’52”.00 122°50’11”.80
40 45°57’40”.00 122°48’46”.80
41 45°55’57”.00 122°48’18”.00
42 45°54’47”.00 122°48’36”.75
43 45°53’05”.00 122°47’48”.30
44 45°52’06”.00 122°47’01”.50
45 45°50’40”.00 122°47’04”.50
46 45°49’31”.20 122°47’41”.00
47 45°48’37”.00 122°47’40”.00
48 45°46’51”.00 122°46’06”.30
49 45°45’34”.20 122°45’37”.00
50 45°44’04”.70 122°45’32”.00
51 45°42’05”.00 122°46’16”.00
52 45°40’50”.80 122°46’24”.00
53 45°39’26”.75 122°45’46”.00
54 45°38’40”.00 122°44’13”.00
55 45°38’17”.00 122°42’47”.50
56 45°37’35”.37 122°41’35”.14
57 45°37’29”.47 122°41’23”.855
58 45°37’26”.52 122°41’18”.215
59 45°37’07”.85 122°40’33”.42
60 45°37’05”.938 122°40’26”.939
61 45°37’05”.62 122°40’25”.86
62 45°37’03”.71 122°40’19”.38
63 45°36’34”.00 122°38’27”.00
64 45°36’29”.80 122°36’21”.30
65 45°36’20”.00 122°35’20”.00
66 45°35’47”.90 122°32’48”.00
67 45°35’23”.50 122°31’24”.20
68 45°35’01”.00 122°29’30”.00
69 45°34’42”.80 122°28’20”.50
70 45°34’03”.00 122°27’09”.30
71 45°33’49”.00 122°26’15”.80
72 45°34’03”.30 122°24’36”.50
73 45°34’29”.50 122°23’25”.80
74 45°34’33”.40 122°22’44”.00
75 45°34’10”.00 122°21’04”.00
76 45°32’55”.20 122°19’49”.00
77 45°32’38”.00 122°17’43”.70
78 45°32’38”.80 122°15’56”.70
79 45°33’03”.25 122°14’24”.50
80 45°33’55”.00 122°11’58”.50
81 45°34’37”.00 122°10’54”.00
82 45°35’03”.00 122°08’25”.50
83 45°34’53”.40 122°06’40”.00
84 45°35’00”.00 122°06’02”.00
85 45°36’35”.00 122°02’35”.00
86 45°36’53”.80 122°01’11”.50
87 45°36’58”.00 122°00’08”.50
88 45°37’23”.00 121°58’54”.50
89 45°37’59”.00 121°57’42”.80
90 45°38’37”.50 121°57’16”.50
91 45°38’42”.00 121°57’01”.80
92 45°38’40”.35 121°56’37”.34
93 45°38’40”.13 121°56’22”.57
94 45°38’39”.82 121°56’01”.46
95 45°39’17”.00 121°54’25”.00
96 45°39’43”.85 121°53’58”.48
97 45°39’44”.81 121°53’58”.16
98 45°39’45”.77 121°53’57”.84
99 45°40’15”.00 121°54’02”.00
100 45°41’36”.80 121°51’57”.00
101 45°42’24”.75 121°48’36”.00
102 45°41’39”.00 121°44’02”.00
103 45°41’42”.00 121°42’22”.00
104 45°42’19”.00 121°40’02”.00
105 45°42’17”.50 121°37’48”.50
106 45°43’36”.00 121°31’54”.30
107 45°43’15”.275 121°29’52”.445
108 45°43’07”.02 121°29’36”.615
109 45°43’04”.075 121°29’30”.96
110 45°42’05”.20 121°27’41”.80
111 45°41’39”.25 121°25’22”.00
112 45°41’35”.00 121°24’02”.00
113 45°42’11”.50 121°22’17”.00
114 45°42’18”.00 121°20’11”.50
115 45°42’00”.00 121°18’40”.00
116 45°41’13”.30 121°17’10”.00
117 45°40’40”.50 121°14’52”.00
118 45°40’17”.00 121°12’52”.50
119 45°39’00”.00 121°11’57”.00
120 45°37’47”.00 121°11’38”.40
121 45°37’00”.25 121°11’43”.00
122 45°36’23”.80 121°10’57”.00
123 45°36’22”.50 121°10’00”.00
124 45°36’29”.175 121°08’39”.84
125 45°36’40”.89 121°08’22”.135
126 45°36’43”.94 121°08’17”.53
127 45°36’35”.69 121°07’50”.34
128 45°36’58”.44 121°07’16”.41
129 45°37’06”.095 121°06’57”.58
130 45°37’14”.85 121°07’02”.75
131 45°37’23”.97 121°07’08”.14
132 45°38’53”.13 121°05’01”.25
133 45°39’09”.54 121°03’47”.51
134 45°39’04”.04 121°01’57”.51
135 45°39’12”.08 121°00’22”.28
136 45°38’54”.66 120°58’56”.33
137 45°38’55”.91 120°58’49”.52
138 45°38’58”.405 120°58’35”.90
139 45°39’24”.84 120°57’06”.97
140 45°39’23”.58 120°56’34”.22
141 45°38’24”.54 120°54’44”.75
142 45°38’35”.09 120°53’40”.72
143 45°40’18”.79 120°51’15”.26
144 45°41’11”.69 120°47’14”.64
145 45°42’19”.71 120°43’38”.83
146 45°42’42”.58 120°42’10”.70
147 45°42’57”.18 120°41’18”.11
148 45°43’48”.14 120°40’05”.19
149 45°44’45”.12 120°38’01”.97
150 45°44’47”.00 120°37’17”.91
151 45°44’47”.99 120°35’23”.91
152 45°44’18”.49 120°33’29”.23
153 45°42’37”.59 120°31’17”.65
154 45°42’00”.37 120°30’16”.48
155 45°41’40”.42 120°28’53”.22
156 45°41’58”.55 120°24’08”.96
157 45°42’41”.66 120°19’30”.62
158 45°43’16”.74 120°16’56”.18
159 45°43’33”.84 120°12’34”.62
160 45°45’43”.67 120°10’10”.01
161 45°46’24”.09 120°08’25”.17
162 45°47’07”.10 120°04’08”.70
163 45°48’26”.17 120°00’49”.27
164 45°49’28”.29 119°57’52”.64
165 45°49’41”.97 119°54’21”.95
166 45°50’25”.18 119°50’53”.51
167 45°50’52”.00 119°48’05”.62
168 45°50’45”.15 119°46’18”.16
169 45°51’25”.40 119°40’07”.80
170 45°54’20”.70 119°37’20”.96
171 45°55’10”.82 119°35’58”.28
172 45°55’32”.25 119°34’13”.67
173 45°54’31”.37 119°31’24”.18
174 45°54’23”.43 119°29’13”.01
175 45°55’03”.10 119°26’57”.35
176 45°55’18”.10 119°21’48”.12
177 45°55’51”.37 119°19’52”.71
178 45°55’54”.48 119°19’39”.28
179 45°55’59”.59 119°19’17”.20
180 45°56’10”.26 119°17’47”.60
181 45°56’15”.24 119°17’05”.76
182 45°56’24”.05 119°15’21”.40
183 45°55’58”.60 119°13’28”.22
184 45°55’40”.97 119°11’39”.82
185 45°55’40”.26 119°10’05”.04
186 45°55’58”.55 119°07’30”.72
187 45°56’34”.25 119°05’32”.00
188 45°57’31”.28 119°03’37”.36
189 45°58’09”.33 119°01’33”.95
190 45°58’45”.73 119°00’27”.12
191 45°00’00”.00 118°59’10”.12
This compact shall become operative when it has been ratified by the legislatures of the States of Oregon and Washington and approved by the Congress of the United States and the Constitutions of the States of Oregon and Washington have been amended to authorize the establishment of the boundary as herein provided.
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