Rio São Marcos
Rio São Marcos
- Boat Ramps
- 0
- Access Points
- 0
- Species
- 15
The Rio São Marcos is a significant tributary of the Paranaíba River located in the state of Goiás, central Brazil. It flows into the Paranaíba within the reservoir created by the Emborcação Dam, forming part of the expansive upper Rio Paraná basin. This river system supports a diverse freshwater fishery, attracting anglers targeting several prized native species.
Species & education
Learn what type of fish are at Rio São Marcos and what's needed to catch them.
Fishing spots, boat ramps & amenities
Learn how to get on Rio São Marcos. Uncover great fishing access points, boat ramps, and all the facilities you need for an unforgettable day on the water. Some locations shown may border or include private property. Always check property boundaries and applicable regulations before visiting. onWater's Public & Private Land layer can help you plan your access with confidence.
Know where you can legally fish on Rio São Marcos
See public and private land boundaries along the water, turn on private parcels with owner details to know where permission is required, and find land-trust parcels that offer permitted fishing access.
Goiás licenses and regulations
No licenses or regulations available for Goiás.
Take Rio São Marcos with you
The onWater Fish app keeps this water's access points, species and conditions in your pocket, with the tools you use once you're there.
Use the map without signal
Download the map around Rio São Marcos to use it offline when coverage drops.
Log your catches here
Keep a private fishing journal for Rio São Marcos to find where and when fish are biting for you.
Get the onWater Fish app
Free on iOS and Android
Water and weather conditions (10 day forecast)
See the best times to fish Rio São Marcos and check the forecast before you go.
Ponte São Marcos
All Flow Stations
Fishing near Rio São Marcos
Explore Goiás waters
Top fishing waters
No waters available right now.
Popular Cities
Loading popular cities...
Explore near Rio São Marcos
Fish species
Fishing spots
Nearby waters
More in Goiás
Smarter Fishing Starts in the App.
onWater Fish gives you everything you need to plan smarter, fish better, and own every trip from first cast to last.



























