The Museum of Our Industrial Heritage in Greenfield has a collection of photos of the Griswold Cotton Mills and other location in a Colrain. These photos were provided courtesy of the Colrain Historical Society.
http://archive.industrialhistory.org/CA/pawtucket/index.php/Detail/collections/10
When you are on their website, click each photo for an enlarged view and information about the photo.
This page on their site has a very brief article about the history of the Griswold Mills.
http://industrialhistory.org/histories/griswold-cotton-mills/
Explore the other links on their website (EXHIBITS, DATABASE, HISTORIES, VIDEOS) for more fascinating videos and photos of this area’s industrial heritage.