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Are there any sources of spatial information about river rapids worldwide (with difficulty category)?

  • Difficulty to do what? – nmtoken Dec 18 '16 at 10:19
  • I mean something like "Class" column at this table. – barti Dec 20 '16 at 7:20
  • so you mean difficulty/class for canoeists to traverse? – nmtoken Dec 20 '16 at 8:07
  • Exactly. But it looks like such sources exist maximum for selected countries level (for example Russia or USA). To be honest i thought that exploring different countries rivers is more popular between canoeists. – barti Dec 21 '16 at 8:37
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American Whitewater offers the National River Database.

The river list selection page gives an overview of real-time information that we can track on a state-by-state basis. We track information for the United States, Canada, Mexico, the Dominican Republic and Costa Rica.

Data is mostly from gauge and user reports. An example of a gauge page looks like this

https://www.americanwhitewater.org/content/Gauge2/detail/id/3358/

I don't see an export option, but if you contact them and have good motives, then maybe they can help. Otherwise, the HTML is easy enough to "parse".

enter image description here


As for the "difficulty", the state pages have a table with the Class.

https://www.americanwhitewater.org/content/River/state-summary/state/WI/

And individual rivers have more info

https://www.americanwhitewater.org/content/River/detail/id/2754/

Including some geo-info

https://www.americanwhitewater.org/content/River/detail/id/2754/#tab-directions

enter image description here

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