APPENDIX IV ELEVATIONS ALONG THE 49TH PARALLEL BOUNDARY ELEVATIONS AND DESCRIPTIONS OF BENCH MARKS Under this heading are given the elevations and descriptions of all permanent bench marks established or used in the survey of the International Boundary from Georgia Strait to the Northwesternmost Point of Lake of the Woods. The list includes bench marks of the Geodetic Survey of Canada, the United States Coast and Geodetic Survey, the United States Geological Survey, and of other agencies of the two Governments. Following this list is a list of elevations of the ground at boundary monuments along several sections of the boundary where level lines were run but no permanent bench marks were established. The elevations of the bench marks of the Geodetic Survey of Canada are given as published in 1929 and 19301 and these elevations were used as the basis for the reduction to a common datum of the elevations of all the other bench marks listed. All of the elevations here listed are in feet and are referred to mean-sea-level datum as defined in the Geodetic Survey of Canada publications of 1929 and 1930 above referred to. THE WASHINGTON-BRITISH COLUMBIA LINE International Boundary Monument 5, 7 feet west of; at Blaine, Whatcom County, Wash.; 1⁄2 mile Blaine, Whatcom County, Wash.; in a stone step on the north side of the main entrance to Blaine Blaine, Whatcom County, Wash., 4 miles east of; at the northeast corner of sec. 3, T. 40 N., R. 1 E., Blaine, Whatcom County, Wash., 7 miles east of; at the northwest corner of sec. 5, T. 40 N., R. 2 E., on the south side of the east-and-west road, 1 foot north of the fence and 38 feet east of the center of the north-and-south road between sections 5 and 6; iron post with bronze cap marked "U. S. Geological Survey B. M. 180-B". Elevation (feet) 2 18. 324 42. 235 453. 6 181. 2 Blaine, Whatcom County, Wash., 11 miles east of; about 1⁄4 mile east of the northwest corner of sec. 1, T. 40 N., R. 2 E., in the southwest angle of the forks of the road; iron post with bronze cap marked "U. S. Geological Survey B. M. 124-B"... Northwood, Whatcom County, Wash., 1 mile south and 61⁄2 miles west of Sumas, Wash.; 15 feet north and 30 feet east of the quarter-section corner between secs. 3 and 10, T. 40 N., R. 3 E.; in the southeast angle of the crossroads; iron post with bronze cap marked "U. S. Geological Survey B. M. 132-B". 125. 3 133. 5 1 Precise Levelling in Manitoba (Publication No. 21), Precise Levelling in Saskatchewan (Publication No. 22), Precise Levelling in Alberta (Publication No. 23), and Precise Levelling in British Columbia (Publication No. 24), Geodetic Survey of Canada, 1929 and 1930. 2 The United States Coast and Geodetic Survey has leveled on this bench mark and has designated it "H-6" in their bulletins. 218 Clearbrook, Whatcom County, Wash., on the Bellingham & Northern R. R., 3 miles southwest of Sumas, Whatcom County, Wash.; 10 feet south of the International Boundary and west of the International Boundary Monument 32; 1⁄2 mile east of the main corners of the village of Hunt- Pasayten River crossing of the International Boundary, Okanogan County, Wash., Yale District, Elevation (feet) 67. 5 203. 4 49. O 43. 9 73. 116 1 32. 763 4 3, 852. 9 Similkameen River valley, Okanogan County, Wash., Yale District, B. C., 0.6 mile south and 0.3 mile east of International Boundary Monument 109, 3 feet east of the highway along the west side of the valley; iron post with bronze cap marked "U. S. Geological Survey B. M. 1197" 5 1, 191. 8 International Boundary Monument 112, 0.3 mile west of; 2 miles east of Similkameen River, Okanogan County, Wash., Yale District, B. C.; iron post with bronze cap marked "U. S. Geological Survey B. M. 1371". Oroville, Okanogan County, Wash.; southeast corner of lot at corner of Main and River Streets; International Boundary Monument 118, 2 feet south of; Okanogan County, Wash., Yale District, Bridesville, Yale District, B. C.; 4 mile southwest of the railway station, in a small rock cut on 6 1, 367 918. 077 5 1, 047. 9 3, 582. 724 3, 449. 826 3 This bench mark was disturbed by repairs made to the monument in 1922. The elevation given has been corrected for the change in elevation. * This elevation was determined by the United States Geological Survey, Bulletin No. 674, 1918. There are at present no data available for referring this elevation to the 1929 datum of the Geodetic Survey of Canada. 5 On an unchecked spur line. • Elevation approximate. Bridesville, Yale District, B. C.; 3 miles south of the railway station, in a small rock cut on the Great Northern Railway, 142 feet south of the 14th telegraph pole north of milepost 96 from Marcus and 417 feet north of the International Boundary; Geodetic Survey of Canada firstorder bench mark, a bronze disk set horizontally in the west side of the cut and marked “Geo-` detic Survey of Canada B. M. 858–J”. Bridesville, Yale District, B. C.; 3 miles south of the railway station, 47 feet west of Great Northern Railway track, 41 feet south of 14th telegraph pole north of milepost 96 from Marcus, and 237 feet north of the International Boundary Line; Geodetic Survey of Canada first-order bench mark, an iron pipe with bronze cap, set in the ground, and marked "Geodetic Survey of Canada B. M. 859-J"_ International Boundary Monument 132, 0.2 mile west of; Okanogan County, Wash., Yale District, B. C.; 600 feet west of Myers Creek, and on the east side of the highway; iron post with bronze cap marked "U. S. Geological Survey B. M. 2631-T"__ Midway, Yale District, B. C.; 5 miles west of Canadian Pacific Railway station; in top of north concrete pier near west or upstream end of highway bridge over Kettle River; Geodetic Survey of Canada first-order bench mark, a bronze disk marked "Geodetic Survey of Canada B. M. 423-J" Midway, Yale District, B. C.; at milepost 2 west of Canadian Pacific Railway station; 50 feet east International Boundary Monument 142, Yale District, B. C., Ferry County, Wash.; Geodetic International Boundary Monument 155, at Carson, Yale District, B. C., and near Danville, Ferry Danville, Ferry County, Wash., about 2 miles east by northeast of; on the Great Northern Railway, directly south of Grand Forks, 0.4 mile north of the International Boundary, 0.5 mile west of the spur track to Grand Forks, on the south side of the track, 20 feet from the south rail; in the top of the granite post 10 by 10 by 48 inches set 36 inches in the ground to mark "Danville west base" triangulation station; bronze bench-mark disk set beside the copper bolt which marks the triangulation station__. Danville, Ferry County, Wash., about 3 miles east by northeast of; on the Great Northern Railway, directly south of Grand Forks, 0.4 mile north of the International Boundary, 0.6 mile east of the spur track to Grand Forks, on the south side of the track, 20 feet from the south rail; in the top of the granite post 10 by 10 by 48 inches set 36 inches in the ground to mark "Danville east base" triangulation station; bronze bench-mark disk set beside the copper bolt which marks the triangulation station... Elevation (feet) 3, 572. 311 3,584. 873 2, 621. 7 1, 929. 036 1, 910. 863 1, 997. 569 1, 915. 222 2, 095. 308 1, 733. 537 1, 751 1, 733 Grand Forks, Yale District, B. C.; in the west foundation wall of the post office, 12 feet from the southwest corner and 2 feet 7 inches below the brickwork; Geodetic Survey of Canada first-order bench mark, a bronze disk marked "Geodetic Survey of Canada B. M. 440–J”. 1, 691. 391 Grand Forks, Yale District, B. C.; in the concrete foundation of the east wall of the courthouse, 45 feet from the northeast corner and 5 feet below the brickwork; Geodetic Survey of Canada firstorder bench mark, a bronze disk marked "Geodetic Survey of Canada B. M. 441-J”. 1,689. 694 Elevation (feet) ------ 1, 699. 385 Grand Forks, Yale District, B. C.; on the abutment of the railway bridge over Kettle River, 3⁄4 mile east of the Canadian Pacific Railway station, at milepost 94 from Nelson; in the north end of the east face of the west concrete abutment, 6 feet above the bridge seat; Geodetic Survey of Canada first-order bench mark, a bronze disk marked "Geodetic Survey of Canada B. M. 439–J”---Grand Forks, Yale District, B. C.; in retaining wall of railway bridge over Kettle River, 21⁄2 miles east of the Canadian Pacific Railway station, at mileage 92.3 from Nelson; in the north stone wall at the east end of the bridge; in top of first stone east of the abutment; Geodetic Survey of Canada first-order bench mark, a bronze disk marked "Geodetic Survey of Canada B. M. 443-J". 1, 695. 307 Gilpin, Yale District, B. C., 11⁄2 miles west of the west switch; at mileage 88.8 from Nelson, on the Canadian Pacific Railway, at a highway bridge over the track; in the center of the south face of the north abutment, about 1 foot above the track level; Geodetic Survey of Canada first-order bench mark, a bronze disk marked “Geodetic Survey of Canada B. M. 444–J”. Gilpin, Yale District, B. C., 1 mile east of the east switch; 240 feet east of milepost 86 from Nelson, on the Canadian Pacific Railway, 500 feet east of a road crossing and 3 feet north of the southerly limit of the railway right-of-way; Geodetic Survey of Canada first-order bench mark, a bronze disk set in the top of a concrete bench-mark pier and marked "Geodetic Survey of Canada B. M. 445-J". Billings, Yale District, B. C., 1⁄2 mile west of the Canadian Pacific Railway station; at mileage 83.4 Cascade, Yale District, B. C., 3⁄4 mile west of the Canadian Pacific Railway station; at mileage 82.7 1, 726. 374 1, 669. 312 1, 658. 461 1, 641. 882 1, 537. 588 International Boundary Monument 165, 210 feet west of; at Laurier, Ferry County, Wash., and International Boundary Monument 165, 3 feet south of; at Laurier, Ferry County, Wash.; between International Boundary Monument 181, 5 feet east of; at Boundary, Stevens County, Wash., Waneta, Kootenay West District, B. C.; in abutment of Great Northern Railway bridge over Clark International Boundary Monument 188-A, 25 feet west of; at Nelway, Kootenay West District, 7 The United States Coast and Geodetic Survey has leveled on this bench mark. 7 1, 677. 195 1, 646. 674 1, 348. 75 1, 348. 14 2,558. 40 Nelway, Kootenay West District, B. C.; 3⁄4 mile northwest of the Canadian customhouse; 24 feet north of the center line of the Waneta-Nelway road, 1⁄4 mile west of the junction of a branch road, and 12 feet east of a fence extending from the road to the shore of a small lake; Geodetic Survey of Canada bench mark, an iron pipe with bronze cap marked "Geodetic Survey of Canada B. M. 27-T" THE IDAHO-BRITISH COLUMBIA LINE Creston, Kootenay East District, B. C.; at the southeast corner of the "Creston House", the hotel property of S. J. Miller in 1904; United States Geological Survey bench mark, an iron post with bronze cap stamped "UNITED STATES BENCH MARK”. Creston, Kootenay East District, B. C., about 3 miles south of; 3.3 miles north of Porthill, Boundary County, Idaho; on the east edge of the right-of-way of the abandoned Great Northern Railway, 30 feet east of milepost 29, and near the south end of trestle No. 14; United States Geological Survey bench mark, an iron post with bronze cap stamped "UNITED STATES BENCH MARK". Porthill, Boundary County, Idaho, 31⁄2 miles north of; in rock cut on the abandoned Great Northern Railway, 780 feet north of a trestle; Geodetic Survey of Canada first-order bench mark, a copper bolt set horizontally in the east side of the rock cut near the south end, and marked "G. S. C. B. M. 197-D". International Boundary Monument 207, at Porthill, Boundary County, Idaho; immediately east International Boundary Monument 207, 4 feet west of; at Porthill, Boundary County, Idaho; United Porthill, Boundary County, Idaho, 2.8 miles south of; 38 feet east of the east rail of the Great Northern Railway track, 157 feet north of the north end of trestle No. 10, and at a fence line near an old gate; United States Geological Survey bench mark, an iron post with bronze cap stamped "UNITED STATES BENCH MARK, Elevation 1780.656 feet". This is also United States Coast and Geodetic Survey first-order bench mark U-10.. THE MONTANA-BRITISH COLUMBIA LINE Elevation (feet) 2, 529. 27 1, 957. 0 1, 800. 5 1, 798. 408 81, 793. 5 91, 793. 954 1, 780. 486 International Boundary Monument 233, Lincoln County, Mont., Kootenay East District, B. C.; on the east side of North Fork of Yaak River, 0.2 mile west of the trail; United States Geological Survey bench mark, a nail driven into the concrete on the south side of the base of the monument. 3, 236. 2 Gateway, Lincoln County, Mont.; 90 feet west of the United States customhouse, on the International Boundary Line; United States Geological Survey bench mark, an iron post with bronze cap stamped "2355". 2, 363. 4 Gateway, Lincoln County, Mont.; 0.2 mile south of the International Boundary Line, 119 feet west of the west rail of the Great Northern Railway, in the top of the square granite post which marks triangulation station "Gateway north base"; a bronze disk stamped "2371".. Gateway, Lincoln County, Mont., 1.2 miles south of; 119 feet west of the west rail of the Great Northern Railway in a rather deep cut, and about 115 feet north of an old house; in the top of the square granite post which marks triangulation station "Gateway south base"; a bronze disk stamped "2362 feet, datum G. N.". Flathead River valley, Flathead County, Mont.; 2.5 miles south of the International Boundary, on the east side of the Flathead River, in the northwest quarter of sec. 23, T. 37 N., R. 22 W., 10 feet north of the junction of the Flathead River trail and the Kishenehn trail as located in 1903; United States Geological Survey bench mark, an iron post with bronze cap stamped "3886"International Boundary Monument 262, 15 feet west of; in the Flathead River valley, Flathead County, Mont., Kootenay East District, B. C.; 0.5 mile east of the Flathead River, 0.3 mile west of Sage Creek; United States Geological Survey bench mark, an iron post with bronze cap stamped "4068". 8 This bench mark was slightly disturbed in 1930 and the elevation is now only approximate. The Geodetic Survey of Canada has leveled on this bench mark. 2, 378. 9 2, 370. 7 3, 895. 4 4, 077. 7 |