Pan Lake Fen occurs on an organic deposit and is surrounded by moderately broken fluvial deposits. The main biological features of this nature reserve include a coniferous swamp near Pan Lake, tall shrub thickets, graminoid fen with some areas dominated by low shrubs. Bedrock knolls and ridges of moderate relief occur along the west side of the site and define the west bank of Namebin Creek. Some of the bedrock is well exposed in cliffs and steep slopes, especially in the northwest corner of the site. The bedrock of the site lies within the Wawa Subprovince of the Superior Structural Province, part of the Precambrian Shield.
Location: Approximately 40 kilometres northeast of the town of Marathon, 40 kilometres south of Manitouwadge and west of Highway 614.
Park Facilities: There are no visitor facilities available.