Thousand Islands level year-round, and support at least two living trees. The Thousand Islands archipelago is located at the outlet of Lake Ontario at the head of the Saint Lawrence River. The region is bisected by the Canada–United States border and covers portions of Jefferson and St. Lawrence counties in the U.S. state of New York, in addition to parts of the United Counties of Leeds and Grenville and Frontenac County in the Canadian province of Ontario. Geologically, most of the islands are located where a branch of the Canadian Shield runs south across the river to join with the Adirondacks. The
Thousand Islands Playhouse are performed, and a black-box theatre, the 140-seat Firehall Theatre in which smaller, experimental plays are produced. The Thousand Islands Playhouse's programming also includes a Playwrights’ Unit with workshop productions for the public, a touring show performed by their Young Company, and the Studio ‘S’ Classical Music Series. The company has also recently renovated a new premier production facility. The Playwrights’ Unit is a year-long residency program to nurture promising playwrights. The selected writers create new plays while having the Playhouse audience and resources of both the Springer Theatre and Firehall Theatre in mind. During the month of December, the