Champlain Valley Heritage Study Act of 1993 - Directs the Secretary of the Interior to study and report to specified congressional committees on the natural, historic, and cultural resources associated with specified sites located in the area around the upper Hudson River, Lake Champlain, and Lake George that are thematically linked to the important history of conflict and cooperation that occurred between the time of aboriginal settlement through significant eras of North American history from earliest European settlement through the end of the American Civil War and Canadian Confederation (1867). Requires an assessment of the feasibility of designating the sites as part of a national or international heritage corridor to be included in such study. Authorizes appropriations.