Loading... Please wait...The map is the first of its kind for the Presidential Range and is a compilation of 45 years of field work by its author, independently over the years and most recently in cooperation with the US and NH Geological Surveys under their Cooperative STATEMAP program. This map is suitable for use by anyone. The map depicts and interprets the geological deposits and features that overly the bedrock beneath the Presidential Range. The author is a consulting geologist with many years of hiking and working in the White Mountains, including many years as a Trustee and President of the Mount Washington Observatory.