Thousand Islands – Frontenac Arch

The Thousand Islands – Frontenac Arch region or the Frontenac Axis is an exposed strip of Precambrian rock in Canada and the United States that links the Canadian Shield from Algonquin Park with the Adirondack Mountain region in New York, an extension of the Laurentian Mountains of Québec.

The Algonquin to Adirondacks region, which includes the Frontenac Axis or Arch, is a critical linkage for biodiversity and resilience, and one with important conservation potential.

[7] There is high bird diversity, including the cerulean warbler, considered nationally endangered owing to the destruction of forests.

Reference to the forest descriptions of early surveyors has documented decline in species such as hemlock, which were preferentially removed for leather tanning.

[8] Criteria for restoring these forests have been established, and include increased tree size, spring ephemeral abundance, and coarse woody debris.

[14] Although it is small, it has many Frontenac Arch species mentioned above, including deerberry, Blanding's turtle, and five-lined skinks.