| Sumay River | |
|---|---|
  | |
| Location | |
| Country | Guam |
| Physical characteristics | |
| Source | |
| • coordinates | 13°15′26″N 144°42′05″E / 13.2572222°N 144.7013889°E |
| Mouth | |
• coordinates | 13°14′47″N 144°41′51″E / 13.2463889°N 144.6975000°E |
The Sumay River is a river in the United States territory of Guam.[1]