Enviornment Minister John Wilkinson says a proposed quarry north of Shelburne, Ont., will have to undergo an environmental assessment before it can be approved.

"Today's decision ensures that a transparent and independent assessment of the environmental impacts of Melancthon quarry proposal will be conducted," said Wilkinson in a statement.

Highland Companies says the area has one of the largest deposits of high quality limestone in the province.

Wilkinson says he believes a comprehensive and independent assessment of the environmental impacts of Melancthon quarry proposal is required.

Highland says the site was selected so that aggregate operations could be conducted in an environmentally, socially and economically responsible manner.

With files from CBC News