Conroy's Marsh is a provincially significant Wetland 24 sq. Kilometers in size. The Little Missippi River, The York River and The Madawaska River all culminate here. This is a spectacular location for Canoeist's and Kayaker's to explore. The marsh is home to an abundance of wildlife and a variety of fish species and aquatic vegetation.

The York River Uplands,is one of Ontario's hidden gems when it come s to paddling. From Algonquin Park’s southern tip and south to Benoir Lake, Elephant Lake and Baptiste Lake, following a path cut through the Canadian Shield millions of years ago. As the river descends from the Madawaska Highlands, its size and velocity increases. The narrow waters flowing at High Falls in Algonquin Park double in volume by the time they reach Egan Chute to the southeast, having been fed by other streams which empty their waters into the York along the way. Papineau Creek and Egan Creek are but two of the York’s navigable tributaries that offer the explorer a chance to venture deeper into this watershed. As its banks grow further apart, the York meanders through Kings Marsh and finally into Conroys Marsh, where it opens up into a vast wetland and connects to the mighty Madawaska.

The Little Mississippi River is a river in eastern Ontario, Canada. It is the outlet river of Weslemkoon Lake and ends in the York River which in turn empties into the Madawaska River, a tributary of the Ottawa River.The river joins the York River where it flows through Conroy Marsh, a provincially significant wetland. At one time, this river was used to transport logs out of the pine forests to sawmills located downstream. A number of timber slides were built to transport logs through rapids along the river. Now, the river is used for recreational canoeing.