Amazon Basin

"The National Park Is One Of The Largest (1,523,000 Ha) And Most Intact Parks In The Amazon Basin." (Official Description) - The Guaporé (Río Iténez) Is Part Of The Madeira River Basin, Which Eventually Empties Into The Amazon River. (Wiki)

Machu Picchu Is Set Above The Urubamba River. The Urubamba (Also Called Vilcanota And Wilcamayu) Joins The Apurimac Which Joins The Ucayali Which Joins The Amazon!! The Apurimac Is Considered The Source Of The Amazon.

At The Huatanay River, Which Trickles Eventually Into The Amazon

At The Headwaters Of The Marañón River, A Tributary Of The Amazon

"Major Rivers Drain Eastwards Into The Amazon Basin"

"The Dominant Features Of The City's Geography Are Also The Source Of Its Name In Spanish: The Four Rivers Of Cuenca (Meaning A Basin Made By A Confluence Of Rivers). These Rivers Are The Tomebamba (Named After The Inca Culture), Yanuncay, Tarqui And Machangara, In Order Of Importance. .... These Four Rivers Are Part Of The Amazon River Watershed" (Wiki)

In The Basin Of Rio Grande Guapay, Tributary To Mamore, Madeira And Amazon Proper
See En.Wikipedia.Org

"Located In The San Martín Region Of Peru Between The Marañón And Huallaga Rivers" (Wiki) - Both Tributaries Of Amazon

The Manu Is A Tributary To The 1,347 Km Long Madre De Dios River, Which Downriver Joins The Madeira River, And Ultimately The Amazon River. (Wiki)

San Jose De Chiquitos Is On The Piray River, A Tributary Of The Yapacani And Then The Amazon.

The Waters On The East Side Of Huascaran Np Drain Into The Rio Maranon - A Tributary Of The Amazon

Chiribiquete National Park Contains The Drainage Basins Of The Mesay, Cuñare, San Jorge And Amú Rivers. Most Of The Rivers In The Park Are Tributaries Of The Caquetá River, Which Is In Turn A Tributary Of The Amazon River. (Wiki)

"The Largest Protected Area In The Amazon Basin" (Ouv) - Located Primarily At The Confluence Of The Negro (The Largest Left Tributary Of The Amazon River (Accounting For About 14% Of The Water In The Amazon Basin)) And Solimões Rivers (Upper Stretches Of The Amazon River)