SURVEYS OF FOREST RESERVES. 25 



Mineral claims. — Many claims have beeu located within the reserve, 

 but none have, been as yet sufficiently developed to show profitable 

 deposits, 



WASHINGTON FOREST RESERVE. 



The following are the limits, as described in the Executive order 

 establishing the reserve : 



Beginning at the point for the southwest corner of township twenty-nine (29) 

 north, range eight (8) east, Willamette meridian, Washington; thence northerly 

 along the unsurveyed range line between ranges seven (7) and eight (8) east, to the 

 point for the northwest corner of township thirty-two (32) north, range eight (8) 

 east; thence easterly along the unsurveyed eighth (8th) standard parallel north to 

 the point for the southwest corner of township thirty-three (33) north, range twelve 

 (12) east; thence northerly along the unsurveyed r;ingo line between ranges eleven 

 (11) and twelve (12) east to the point for the northwest corner of township thirty- 

 six (36) north, range twelve (12) east; thence westerly along the unsurveyed ninth 

 (9th) standard parallel north to the point for the southwest corner of township 

 thirty-seven (37) north, range seven (7) east; thence northerly along the unsurveyed 

 range line between ranges six (6) and seven (7) east to its point of intersection with 

 the international boundary line between the State of Washington and the British 

 Possessions; thence easterly along said international boundary line to the point for 

 the unsurveyed range line between ranges twenty-two (22) and twenty-three (23) 

 east; thence southerly along said unsurveyed range line, subject to the proper east- 

 erly or westerly oifsets on the ninth (9th) and eighth (8th) standard parallels north, 

 to the point for the southeast corner of township twenty-nine (29) north, range 

 twenty -two (22) east; thence westerly along the unsurveyed and surveyed seventh 

 (7th) standard parallel north to the point for the southwest corner of township 

 twenty-nine (29) north, range eight (8) east, the place of beginning. 



Surreys. — Three separate and independent parties were organized in 

 this reserve — one in the eastern portion of the reserve, in the vicinity 

 of Lake Chelan ; the second in the territory west of the summit of the 

 Cascade Range, operating from Monte Cristo, and a third at Ellens- 

 burg, for the purpose of extending reconnaissance triangulation over 

 ' the entire reserve. As in the other reserves mentioned, few or no data 

 were available from which to start surveys. 



In the section east of the summit of the Cascade Eange it was there- 

 fore liecessary to measure a base line in the vicinity of Lake Chelan 

 and to expand therefrom a system of triangulation, which system was 

 ultimately connected with the Elleusburg base by the observations of 

 the party referred to above as the triangulation party. Depending on 

 this triangulation, detailed mapping was commenced in the basin of 

 Lake Chelan and about 400 square miles were mapped, including a 

 careful survey of the shore line of the greater portion of the lake and 

 the topography of the adjoining mountains. Level lines were carried 

 from a bench mark previously established by the Army Engineer Corps 

 at Chelan Palls, on the Columbia River, to the lower end of Lake Che- 

 lan. A connection between the lower and the upper end of the lake 

 was established by synchronous water height observations, and from 

 the head of the lake the levels were continued to the summit of the 

 Cascade Mountains at Cascade Pass. Connections were obtained with 

 the existing land surveys, so that land lines may be projected in their 

 proper location over any portion of the territory surveyed. Careful 

 observations for defining the extent and variety of the timbered areas 

 were made and the necessary data were secured for the segregation of 

 such lands as proved to be more valuable for agricultural than for 

 timber purposes 



No triangulation existed in the area west of the summit of the Oas- 



