Great Lakes other lakes as "the lower lakes", because they are farther south. Sailors of bulk freighters transferring cargoes from Lake Superior and northern Lake Michigan and Lake Huron to ports on Lake Erie or Ontario commonly refer to the latter as the lower lakes and Lakes Michigan, Huron, and Superior as the upper lakes. This corresponds to thinking of Lakes Erie and Ontario as "down south" and the others as "up north". Vessels sailing north on Lake Michigan are considered "upbound" even though they are sailing toward its effluent current. Lakes Huron and Michigan are sometimes considered a single lake, called
Great Lakes Higher Education Corporation Great Lakes Higher Education Corporation Great Lakes Higher Education Corporation was one of the largest student loan providers and guarantors in the United States. Headquartered in Madison, Wisconsin, the corporation is non-profit. It was one of the four largest companies which service United States federal student loans: "Great Lakes", Nelnet, Navient, and the Pennsylvania Higher Education Assistance Agency. In 2018, the loan servicing part of the organization was sold to Nelnet. The company sometimes gives education-related grants, with a focus on increasing access to higher education. The former loan servicing arm of Great Lakes, the "Great Lakes Educational Loan Services,