The property was least and the quarry developed further by Manitou/Senator Stone from Concord, Ontario in 1995. The east “keyway” layers were removed to the depth of the original Ontario marble Company Limited quarry (approximately 50′). The east-west “keyway” was developed to the existing approximate 200′ width. A top lift of the surface layers was also removed on strike to the south before operations ceased in 2000.

The metamorphic crystalline marble layers are known as Grenville Marble in this area of the Canadian Precambrian Shield. These Grenville Marble layers consist of calcitic and dolomitic units of varying thickness and purity. The marble layers at this location strike north-south and dip steeply to the east at around 10 from vertical.

After extensive core drilling (over 60 cores), the Vermont Marble Company selected to the open the Dimension Stone Quarry (1965) on the 60′ east-west width of the “Tweed White, Pearl and Vert” layers. The cross section of cores 18 and 25 with this report – now the western section of the existing east-west “keyway” quarry, on the cross section A-A line of the 1994 Quarry Operational Plan with this report. At this location, the layers were sound (free of joints) and could supply a uniformity of grades. The deepest core at the location was vertical core 64 at 148′ on the 1967 block diagram and 1968 quarry floor plan with this report.