use The corridor is a well-established area for development; many international corporations have located their subsidiaries there for a number of reasons. Firstly, its location on the TransCanada Highway, with Canadian Pacific Rail and Canadian National Rail allows direct access to markets across Canada and to the United States. The close proximity to the Global Transportation Hub, one of Canada's inland ports, feeds material to and from the U.S. border. Furthermore, the Belle Plaine area is considered one of the top four heavy industrial sites in North America. The flatness of the land, with easy access to water, natural gas and electrical power is beneficial for industry. It is also located in close proximity to two of the fastest-growing urban centres in Saskatchewan—Regina and Moose Jaw, which provides easy access to airports for business. Lastly, the area is ideal because of the presence of vast high-quality reserves of potash. Industries located in the corridor The Regina-Moose Jaw Industrial Corridor mostly relies on agriculture and agri-value processing, fertilizer production and mining, and energy. This area has experienced massive industrial construction over the last few years. Some of the industrial projects located in the corridor include mining, pipelines, railway, and agriculture as well as fertilizer, ethanol, and salt plants. • Fertilizer: Yara Fertilizer is one of the largest producers of granular urea in North America. The company is located in the industrial park of Belle Plaine. Alpine Plant Foods, the leader in liquid fertilizer production in Canada is also located in this industrial park. • Ethanol: Terra Grain Fuels produces ethanol in the corridor. The company's ethanol plant has a capacity of approximately of ethanol annually and 163,800 tonnes of dried distillers' grains annually. • Salt: K+S Windsor Salt LTD operates a plant at Belle Plaine. This company produces and distributes salt-based products for multiple uses, such as agricultural, industrial, and household uses. Mining production in the Qu'Appelle Valley corridor and impacts Saskatchewan's potash production is heavily concentrated in the Qu'Appelle Valley corridor. As of 2013 there are six mines operating and eight mines in the proposal stage located in the Qu'Appelle River Watershed. Mines in this area access the water necessary for production from three different source points—the Qu'Appelle River system itself, groundwater, and Lake Diefenbaker (which comes from the Saskatoon South East Water Supply System—SSEWS). Because potash operations are reliant on water sources, this area of Saskatchewan is very attractive