Very long heterogenous fen with marked spots of high diversity and other large weedy zones. Fen elevated on norther and southern margins and depressed near central lakes (2). Bordered on north by woodland as well as on southern edge, but southern edge has a railroad and nearby row-crop agriculture. Typhaspp. appear to be heavily impacting fen. Dasiphora fruticosa and Carex sterilis dominated area about 20m northwest of oak island and about 15 southeast of small stream. Other species in area include Muhlenbergia glomerata, Solidago ohioensis, and Muhlenbergia richardsonis. Typha latifolia present. Ground solid but moist. Frangula alnus threatens this Poweshiek-inhabited area.