Station. Angle. 16,876 ft. log.
Dist. E. base — W. base = 4.227270
St. Elias 5° 23' 38" A. C. log. sine = 1.026862
Western base 98 29 12 log. sine = 9.995218
Eastern base 76 07 10 log. sine = 9.987129
St. Elias — W. base = 5.241261
St. Elias — E. base = 5.249350

log. feet. log. miles. miles.
Log. distance: St. Elias — W. base = 5.241261 1.518627 33.01
Log. tan angle of elevation 5° 43' = 9.000465
17447 ft. 4.241726
Curvature and refraction = +623
Western base above sea +10 Correction for curvature and
refraction in feet = 4/7 sq. of
dist. in miles.
St. Elias above sea = 18080 ft.
log. distance miles = 1.51863
1.51863
log. 4 = 0.60206
A. C. log. 7 = 9.15490
log. 623 ft. = 2.79422

log. feet. log. miles. miles.
Log. distance: St. Elias — E. base = 5.249350 1.526716 33.63
Log. tan 5° 37' 8.992750 1.526716
0.602060
17462 = 4.242100 9.154902
Curvature and refraction +646
E. base above sea +10 log. 646 ft. = 2.810394
St. Elias above sea = 18118 ft.

Mean elevation above sea level = 18099 ft.; or in round numbers 18,100 ft.

Mr. A. Lindenkohl, of the U. S. Coast and Geodetic Survey, and Mr. S. S. Gannett have each computed the geographic position of Mount St. Elias, using the azimuth and angle of elevation of the mountain obtained by the U. S. Coast Survey at Port Mulgrave in 1874,3 and the elevation given above. From these data the approximate position of Mount St. Elias was found to be:

Lat.,60° 17' 51" N.
Long.,140° 55' 30" W.

3 Report of the Superintendent of the U. S. Coast Survey for 1875, Appendix 10, pp. 157–188.