This category is within the scope of WikiProject Rivers, a collaborative effort to improve the coverage of Rivers on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.RiversWikipedia:WikiProject RiversTemplate:WikiProject RiversRiver articles
This category is within the scope of WikiProject Russia, a WikiProject dedicated to coverage of Russia on Wikipedia. To participate: Feel free to edit the article attached to this page, join up at the project page, or contribute to the project discussion.RussiaWikipedia:WikiProject RussiaTemplate:WikiProject RussiaRussia articles
This category is within the scope of WikiProject Arctic, a collaborative effort to improve the coverage of Arctic on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.ArcticWikipedia:WikiProject ArcticTemplate:WikiProject ArcticArctic articles
Start a discussion about improving the Category:Lena basin page
Talk pages are where people discuss how to make content on Wikipedia the best that it can be. You can use this page to start a discussion with others about how to improve the "Category:Lena basin" page.