UNITED STATES GEOLOGICAL SURVEY CHARLES D. WALCOTT, DIRECTOR SURVEY OF THE BOUNDARY LINE BETWEEN IDAHO AND MONTANA FROM THE INTERNATIONAL BOUNDARY TO THE CREST ILLUSTRATIONS. Page. PLATE I. Crest of Bitterroot Mountains........... 16 II. A, Cabinet Range; B, Summit of Cabinet Range, showing points 18 III. A, Camp south of summit of Cabinet Range; B, Quartzite slate IV. Astronomic piers in court-house grounds at Spokane, Washington. 2220 VI. Transit station on random line. VII. Granite boundary-line monuments VIII. Design for iron post.... IX. Post 48, at summit of timbered ridge. X. Post 42, and line cut through timber XI. A, Granite monument on boundary line near Leonia, Idaho; B, 54 XII. Clark Fork of Columbia River just west of boundary line.. 56 XIV. Map of boundary line. FIG. 1. Design for stadia rod.. |