Marmora and Lake is a municipality along the banks of Crowe River and Beaver Creek, about midway between Toronto and Ottawa on provin…Marmora and Lake is a municipality along the banks of Crowe River and Beaver Creek, about midway between Toronto and Ottawa on provincial Highway 7 in Hastings County in Central Ontario, Canada. It is home to over 4,000 full time and seasonal residents, many of whom enjoy outdoor recreation and relaxation on Crowe Lake.