Article on a series of sixteen drawings, the earliest known depictions of the virgin North Woods of Maine, produced in 1840 by a surveying expedition. The priceless drawings have been virtually lost for over 150 years, unknown and unexhibited. The drawings are made even more rare by the fact that they are not merely artists\u27 interpretations, but rather exact renditions drawn with the aid of an apparatus called a camera lucida. The survey of the North Woods was undertaken by a group of distinguished American scientists and engineers, led by Captain Andrew Talcott, Professor James Renwick of Colombia University, and James D. Graham, an engineer. The survey was the last field study made before the boundary dispute between Maine and Canada was finally settled