National Geographic : 1896 Apr
THE ALTITUDE OF MOUNT ADAMS, WASHINGTON By EDGAR MCCLURE On July 10, 1895, in company with the heliograph party of the Mazamas,* I carried a mercurial barometer to the summit of mount Adams, a snow-capped peak in the Cascade range, in the southern part of the state of Washington. We traveled from Eugene, Oregon, by rail to Portland, Oregon; thence by steamer down the Willamette river to its mouth, and thence up the Columbia river to White Salmon landing. From this last-mentioned point we traveled north by wagon road 27 miles to Trout lake, and thence by trail, still northward, 14 miles to the snow-line on the mountain side. This camp was called Mountain View camp, and is situated near the foot of the White Salmon glacier. From this point it is a continuous climb of four miles to the summit of the mountain. The instrument used was barometer No. 1612, made by James Green, of Brooklyn, New York. It was compared with the Weather Bureau instrument at Portland, Oregon, and with the large standard barometer belonging to the State Weather Service at the University of Oregon, at Eugene, Oregon. Parallel obser vations were made by previous arrangement at Portland, Oregon, Eugene, Oregon, and Seattle, Washington. Mountain View camp, at the snow-line, was left at 4:30 a. m. on July 10, and the summit of the mountain was reached about 11:00 a. m. The ascent was made over a large snow-field imme diately west of a long lava ridge which runs southeastward from the summit of the mountain. The climb is long and hard, but it has no points of danger along the route. The summit was left for the return trip about 4:00 p. m. and camp was reached about 5:30 p. m. Observations began on the summit at 12:30 p. m. and were continued until 3:30 p. m. The air thermometer having been accidentally broken on the evening before the climb, the air temperature on the summit was taken from the attached ther * The Mazamas is an association of mountain climbers, with headquarters at Port land. Oregon. The object of the organization is the collection of scientific data con cerning the mountains of Oregon and Washington.