Welcome to the Monson Public School System Home Page Monson School Department 29 Thompson St. Monson, Massachusetts 01057 Phone: 413-267-4150 Fax: 413-267-9168 Granite Valley Middle School - Grade 5 - School Choice Application School System Directory Newsletters/Updates 2001-2002 School Calendar 2002-2003 School Committee Information PTSA Parent Information Graduation Monson High School ...