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Observation notes: Sedge fen presently wet enough to require rubber boots everywhere. About 1500 metres long, up to 400 metres wide. Spent about 1.5 hours trudging around this fen. Dominant vegetation includes many Cyperaceae, Betula nana, Rhododendron columbianum, Trollius albiflorus, Caltha lepstosepala, Salix commutata.