A Movable, Constant-Orientation, Lookout Mapboard
Abstract:In the location of fires from lookout towers by means of alidade and map, there is always a possibility that the line of sight from a fixed map to the fire will be obstructed by a structural member (corner posts, etc.) of the lookout cabin. To avoid this, maps are sometimes mounted on boards which can be moved about the table top, orienting the map by pressing the board against strips fastened to the table top. Wear and loosening of these orientation strips and the possibility of not fitting the board to them properly contribute to inaccurate location of fires. A method of mounting mapboards, free of these disadvantages, is described below. This method was developed by the author while at the California Forest Experiment Station.
Document Type: Journal Article
Affiliations: Associate Silviculturist, Northeastern Forest Experiment Station
Publication date: 1935-02-01
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