GeotchaA geography quiz on a real globe
13 longest tributaries of the Ohio
13 tributaries, each one drawn on a satellite globe. Name it when it lights up, find it when you are given its name, or type every one you can remember in Name all.
Free to play, with no account needed. What you miss comes back for review until it sticks.
The tributaries
- 1Cumberland1,107 km
- 2Tennessee1,049 km
- 3Wabash960 km
- 4Green River (Kentucky)618 km
- 5Allegheny523 km
- 6Licking488 km
- 7Kentucky417 km
- 8Scioto372 km
- 9Little Kanawha River269 km
- 10Guyandotte267 km
- 11Great Miami River240 km
- 12Salt River (Kentucky)240 km
- 13Monongahela209 km
Length in km as Wikidata records it (P2043, the best-ranked figure). Each named river counts on its own: the river that carries the name, from its source to its mouth. Headstreams and tributaries with names of their own are rivers of their own, so the Missouri and the Mississippi are two rivers here, as are the Irtysh and the Ob (the Longest River Systems set measures such chains as one system, from the most distant source). A named section of a river is that river: the Solimões, as the Amazon’s upper course is called in Brazil, is the Amazon. Where the recorded length runs from a differently named headwater (the Congo’s from the Lualaba’s source), the course is drawn on up that headwater. Rivers under 200 km are in only when they are well known (30 or more Wikipedia editions), and a river whose mapped course covers under half its recorded length is left out. Rivers in Antarctica are left out unless the quiz includes Antarctica. Tributaries: the rivers that flow straight into the Ohio, as Wikidata records where each river flows (P403) or which rivers flow into it (P974). A named stretch of the Ohio (the Solimões of the Amazon) counts as the Ohio; a river that reaches it through a lake or through a river too short for this pool is in its basin, not one of its tributaries. Their own tributaries are left out.
On the map
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