### social organization | branch:

Tributary
* Most tributaries are small streams or creeks that feed into a major river or reservoir.
* Tributaries are bodies of water that flow into a larger river
  - water, which flow into a larger river
  - branches of streams that converge to form the trunk of a larger stream, or river
  - smaller feeder streams of rivers which empty into a larger mainstem river
  - the smaller rivers and streams that flow into the larger river
  - flow into other bodies of water
+ List of rivers of Bolivia, By drainage basin
  * This list is arranged by the place the river drains. Tributaries are indented under each larger stream's name. Rivers longer than 400 miles are in bold
  - Cambodia, By drainage basin
  * This list is arranged by where the river drains. Tributaries are indented under each larger stream's name
  - Colombia
  * This is a list of rivers in Colombia. They are arranged by where they drain. Tributaries are indented under each larger stream's name
  - Costa Rica
  * This is a 'list of rivers in Costa Rica'. The list is arranged by where the river drains. Tributaries are indented under each larger stream's name
  - Cuba: Geography of Cuba
  * This is a 'list of rivers in Cuba'. It is arranged from west to east, by coast. Tributaries are indented under each larger stream's name
  - East Timor
  * This is a list of rivers in East Timor. The list is arranged by where the river drains from west to east. Tributaries are indented under each larger stream's name
  - Ecuador
  * These are the rivers of Ecuador. This listing is arranged by where the river drains. Tributaries are indented under each larger stream's name
  - El Salvador
  - Fiji
  * They are listed by island in clockwise order, starting at the north end of each island. Tributaries are listed under the parent stream
  - Guatemala
  - Guyana
  * This is a 'list of rivers in Guyana'. Tributaries are indented under each larger stream's name
  - Haiti: Geography of Haiti
  * This is a 'list of rivers of Haiti'. They are arranged by where the river drains. Tributaries are indented under each larger stream's name
  - Honduras
  * This list is arranged by where the river drains, from east to west. Tributaries are indented under each larger stream's name
  - Indonesia, By Island: Geography of Indonesia
  * This list is arranged by island from west to east. Tributaries are indented under each larger stream's name
  - Israel: Geography of Israel
  * This is a 'list of rivers in Israel'. This list is arranged by where the river drains. Tributaries are indented under each larger stream's name
  - Jamaica
  * This is a 'list of rivers of Jamaica'. Tributaries are indented under each larger stream's name
  - Jordan
  * This is a 'list of rivers in Jordan'. This list is arranged by where the river drains. Tributaries are indented under each larger stream's name
  - Laos
  * This is a 'list of rivers in Laos '. This list is arranged by where the river drains. Tributaries are indented under each larger stream's name
  - Myanmar
  - Nepal: Geography of Nepal
  * This is a 'list of rivers in Nepal'. Tributaries are indented under each larger stream's name
  - Nicaragua
  - Panama
  * This is a 'list of rivers in Panama'. The list is arranged by where the river drains. Tributaries are indented under each larger stream's name
  - Paraguay
  * This is a 'list of rivers in Paraguay'. This list is arranged by where the river drains. Tributaries are indented under each larger stream's name
  - Peru, By Drainage Basin
  * This list is arranged by where the river drains. Tributaries are indented under each larger stream's name. Rivers longer than 400 miles are in bold
  - Suriname
  * This is a 'list of rivers in Suriname'. This list is arranged by where the river drains. Tributaries are indented under each larger stream's name
  - Syria
  * This is a list of rivers of Syria. Tributaries are listed under the river into which they flow
  - Tanzania: Geography of Tanzania
  * This is a list of rivers in Tanzania. They are arranged by where the rivers flows. Tributaries are indented under each larger stream's name
  - Trinidad and Tobago
  * This is a 'list of rivers of Trinidad and Tobago'. Tributaries are indented under each larger stream's name
  - Uruguay
  * This is a 'list of rivers in Uruguay'. Tributaries are indented under each larger stream's name. All rivers in Uruguay drain to the Atlantic Ocean
  - Venezuela
  * This is a 'list of rivers in Venezuela'. This list is arranged by where the river drains. Tributaries are indented under each larger stream's name
  - the Dominican Republic
  * This is a 'list of rivers in the Dominican Republic'. They are arranged in clockwise order around the island starting in the northwest corner. Tributaries are indented under each larger stream's name