B/W chart showing the progress of the survey in Alaska during the year ending in June 30th, 1887.
Map of Alaska, 1888
Chart 13. Sketch Showing the Progress of the Survey in Section No. XII, ALASKA. 1888.
B/W chart showing the progress of the survey in Alaska during the year ending in June 30th, 1887.
Chart 13. Sketch Showing the Progress of the Survey in Section No. XII, ALASKA. 1888.