John Day River

Based on OpenStreetMap data, John Day River is 472 km long.

Map of John Day River

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Distributaries / Outflows

It has 4 side channels. (TODO fill in side channels)

John Day River flows into Columbia River , which it joins at N 45° 44′ 16″, W 120° 39′ 15″ at OSM node n11134285126, and there 146,857 km of total upstream flows in.

Tributaries

John Day River has 133 tributaries.