Note 11 — [212] CHAPTER I [VIII]1

Lieutenant Swift's trigonometrical measurement of the elevation of Pike's Peak was quite accurate. If to his calculation of 8,507½ feet above the plain the correct elevation of the latter be added, the sum is within a few feet of the now accepted height; but, as in Pike's measurement, the result was invalidated by an erroneous estimate of the height of the plain (3,000 feet instead of about 5,700). The latitude and longitude as calculated for this camp afford another instance showing the error in the observations made by the expedition. The correct figures for Colorado Springs are 38° 49′ 41.67″ north latitude, and 104° 49′ 15.10″ longitude west of Greenwich.—Ed.