Algonquin to Adirondacks Collaborative  The Algonquin to Adirondacks Collaborative (A2A) is an environmental NGO, a registered charity, and a not-for-profit multi-national (Canada, United States, First Nations). This network of partners works together to connect lands and people from Algonquin Provincial Park in Ontario, Canada to the Adirondacks in New York State. The Algonquin to Adirondacks region represents a critical link for biodiversity and resilience in North America. In the 1990s, the Ottawa Valley chapter of the Canadian Parks and Wilderness Society convened a committee to discuss a landscape conservation effort to ensure ecological connectivity and help restore biodiversity from Algonquin Park to the Adirondacks, along the Frontenac Arch. The Algonquin to Adirondacks (A2A) Conservation Association (now Collaborative) was incorporated in 2002 to enhance habitat connectivity and maintain native biodiversity in the region. The organization is similar to its sister conservation corridor in western North America, the Yellowstone to Yukon Conservation Initiative, and Two Countries, One Forest (a project of the Wildlife Conservation Society), in conducting landscape conservation work across international boundaries. In the first decade (2002-2012) the A2A Conservation Association worked to support partner organizations, and conduct projects with their help, on the Canadian side of the Thousand Islands region of the St. Lawrence River. This area was strategic because it is the pinch point of the A2A Region and the communities on the Canadian side were very engaged in conservation efforts. Projects included water quality analyses, shoreline analyses, and creating resources for landowners. During two visioning workshops in 2012, partners identified the need for the A2A Conservation Association to be reimagined as a Collaborative. This led to a change in name and organizational structure. In response to the notable lack of American representation, partners also called for the A2A Collaborative to better embody its name by becoming a less local and more regional initiative with more American representation. Concerted outreach led to new American partners and American members of the Board of Directors. In 2014, the A2A Collaborative received capacity-building support from the Ontario Trillium Foundation to hire a full-time coordinator and hold partner events. The inaugural A2A Collaborative Partner Meeting in Brockville, Ontario, March 29–30, 2014, saw 42 participants representing 31 different organizations across the A2A Region. Mammals: In the A2A Region there are an estimated 54 species, including wolf, marten, lynx, moose, black bear, ermine, fisher, and grey fox, which is considered threatened.