The Sable River winds through Nova Scotia's Sable Ecodistrict, a landscape shaped by acidic soils and a network of interconnected river systems that drain toward the Atlantic coast. As a stream system embedded in this ecodistrict, the Sable River is part of a broader freshwater network that supports both resident fish populations and seasonal runs of anadromous species. Water productivity tends to be relatively low due to naturally high acidity levels in the watershed, a characteristic common to many rivers in this region of Nova Scotia. Despite this, the river remains an important corridor for wildlife and fish, drawing anglers who appreciate its wild, undeveloped character.