Guadiana Menor
| Guadiana Menor River | |
|---|---|
| View of the river at the Negratín Reservoir | |
| Location of the Guadiana Menor | |
| Location | |
| Country | Spain | 
| Region | Andalusia | 
| Physical characteristics | |
| Source | Sierra de Baza | 
| • location | Guadalquivir | 
| • elevation | 630 m | 
| 2nd source | |
| • location | Granada Jaén | 
| Mouth | Guadalquivir River, on the left bank | 
|  • coordinates | 37°56′07″N 3°15′27″W / 37.9354°N 3.2575°W | 
| Length | 182 km | 
| Basin size | 7251 km² | 
| Discharge | |
| • location | 15.76 m³/s | 
| Basin features | |
| Tributaries | |
| • left | Guadahortuna River | 
The Guadiana Menor River is a river in southern Spain, one of the main tributaries of the Guadalquivir River, on its left bank. It has a total length of 182 km (including the length of its upper stretches known as the Baza River and Gallego River), and it drains a large basin of 7,251 km². Administratively, it flows through the provinces of Granada and Jaén in the autonomous community of Andalusia.
In 1977, the Guadalquivir Hydrographic Confederation published a book titled Guadalquivires, which endorsed the thesis that the true source of the Guadalquivir is the Guadiana Menor–Barbata, considered as a single river.