Gould Lake Conservation Area, Conservation area in South Frontenac, Ontario, Canada

Gould Lake Conservation Area is a rural conservation area on the Canadian Shield northwest of Sydenham in South Frontenac, Frontenac County, Ontario. It contains much of Gould Lake, whose headwaters feed Millhaven Creek, and lies just north of the bedrock scarp separating Precambrian Shield from Ordovician formations. Forests of eastern hemlock, white cedar, yellow birch and sugar maple cover the area.

Gould Lake Conservation Area was assembled by the Cataraqui Region Conservation Authority, which bought the land between 1967 and 1973. Before protection, the area drew 19th-century industry: several mica mines opened around the lake, and the McClatchy Mine, which began as a phosphate operation, was worked for mica until 1912. Old pits and mining relics remain on the grounds.

The Limestone District School Board uses the original barn near the beach as the base for its outdoor education programs at the property. The barn predates the conservation area and stands beside the beach on Gould Lake.

The trails are well-maintained and allow for hiking and cross-country skiing depending on the season. Visitors should expect varying conditions and arrive early in peak season to secure parking.

The grounds contain remnants of 19th-century mica and phosphate mines with visible pits scattered throughout. These mining sites are reminders of earlier economic use before the land became protected.