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."

Farmington: Franklin County's Shiretown - Agriculture

"It is thought that the smoke and ash created a “volcanic winter.” For the next 5 years, many of the Farmington settlers were disheartened and left…"