保古ノ湖

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保古ノ湖 flows into (unnamed) , which it joins at N 35° 26′ 26″, E 137° 29′ 35″ at OSM node n726270257, and there 1 km of total upstream flows in. load it's distributaries

保古ノ湖 has 1 tributaries.

• (unnamed), which joins it at N 35° 26′ 27″, E 137° 29′ 35″ at OSM node n10808057249, and 959 m of total upstream flows in.
load it's tributaries