Digital Maine, The online library of Maine community and State Government collections possesses the documents that are accessible via the links below.  

Digital Maine access to Documents pertaining to the Geology of Fort Foster and Kittery

Beaches at Fort Foster, Kittery, Maine  - Stephen M. Dickson 2013

MAine Geologic Survey Report of  the Beaches at Fort Foster - PDF

Map - 1:100,000 quadrangle

Bedrock geology of the Kittery 1:100,000 quadrangle, Maine and New Hampshire - Map Access