Maine Memory Network

Historic Hallowell - Industry at the Mouth of the Vaughan Stream

"The slate was made of clay or volcanic ash. Slate, a rock formed from shale and mined by quarrying, had low heat and not very much pressure put on it."

New Portland: Bridging the Past to the Future - North New Portland Village

"… no doctor, and our Central Elementary School is slated to close at the end of the school year. We have a Presbyterian Church, a post office, a…"

Islesboro--An Island in Penobscot Bay - Historical Overview

"The bedrock consists mostly of slate, quartzite, limestone and greenstone – materials that at a later date provided income for those who came to…"