Category:Reservoirs in the canton of Obwalden
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Cantons of Switzerland: Aargau (AG) · Bern (BE) · Fribourg (FR) · Glarus (GL) · Graubünden (GR) · Neuchâtel (NE) · Nidwalden (NW) · Obwalden (OW) · Schwyz (SZ) · Solothurn (SO) · St. Gallen (SG) · Ticino (TI) · Uri (UR) · Valais (VS) · Vaud (VD) · Zürich (ZH)
Subcategories
This category has the following 3 subcategories, out of 3 total.