Mackenzie River basins, mostly in Alberta. The cold northern permafrost regions beyond the Arctic Circle are very sparsely populated, mainly by indigenous peoples. Most of the Mackenzie watershed is unbroken wilderness and human activities have little influence on the overall water quality, although there are some localized impacts. Some parts of the Mackenzie basin are rich in natural resources – oil and gas in the Northwest Territories and in central Alberta, lumber in the Peace River headwaters, uranium in Saskatchewan, gold and zinc in the Great Slave Lake area and tungsten in the Yukon. As of 2003 there were two operational gold
Lake Fork Mohican River U.S. Army Corps of Engineers dam causes the river to form Mohicanville Lake. Lake Fork Mohican River The Lake Fork is a tributary of the Mohican River, 14.7 miles (23.7 km) long, in north-central Ohio in the United States. Via the Mohican, Walhonding, Muskingum and Ohio Rivers, it is part of the watershed of the Mississippi River, draining an area of 344 square miles (891 km²). The Lake Fork is formed by the confluence of the Jerome Fork and the Muddy Fork in southeastern Ashland County, and flows generally south-southwestwardly into northwestern Holmes County, where it joins the Mohican River,