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
Category talk:Maritsa basin is part of WikiProject Geology, an attempt at creating a standardized, informative, comprehensive and easy-to-use geology resource. If you would like to participate, you can choose to edit this article, or visit the project page for more information.GeologyWikipedia:WikiProject GeologyTemplate:WikiProject GeologyGeology articles
This category is within the scope of WikiProject Geography, a collaborative effort to improve the coverage of geography 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.GeographyWikipedia:WikiProject GeographyTemplate:WikiProject Geographygeography articles
This category is part of the WikiProject Limnology and Oceanography to improve Wikipedia's coverage of the inland waters and marine environments. The aim is to write neutral and well-referenced articles on limnology- or oceanography-related topics, as well as to ensure that limnology and oceanography articles are properly categorized. Read Wikipedia:Contributing FAQ and leave any messages at the project talk page.Limnology and OceanographyWikipedia:WikiProject Limnology and OceanographyTemplate:WikiProject Limnology and OceanographyLimnology and Oceanography articles
