It occupies a fertile portion of the Connecticut River Valley and was vulnerable to attack because of its position near the Berkshire Mountains .
Deerfield was the northwesternmost outpost of New England settlement for several decades during the late seventeenth and early eighteenth centuries .
Deerfield occupies a fertile portion of the Connecticut River Valley and was vulnerable to attack because of Deerfield 's position near the Berkshire Mountains .
Deerfield was the northwesternmost outpost of New England settlement for several decades during the late seventeenth and early eighteenth centuries .