| Fly | |
|---|---|
 Aerial view of the Fly River | |
 Location of the Fly | |
| Location | |
| Country | Papua New Guinea and Indonesia |
| Physical characteristics | |
| Source | |
| • location | Star Mountains, Papua New Guinea |
| • coordinates | 5°32′15″S 141°53′16″E / 5.53750°S 141.88778°E |
| • elevation | 3,000 m (9,800 ft)[1] |
| Mouth | Gulf of Papua |
• location | Papua New Guinea |
• coordinates | 8°33′40″S 143°35′20″E / 8.56111°S 143.58889°E |
• elevation | 0 ft (0 m) |
| Length | 1,060 km (660 mi)[2] |
| Basin size | 75,800 km2 (29,300 sq mi)[3] |
| Discharge | |
| • location | Fly Delta |
| • average | 6,500 m3/s (230,000 cu ft/s)[4] |
| Discharge | |
| • location | Ogwa |
| • average | 6,000 m3/s (210,000 cu ft/s)[3] |
| Discharge | |
| • location | Obo |
| • average | 2,400 m3/s (85,000 cu ft/s)[3][1] |
| Discharge | |
| • location | Kiunga |
| • average | 1,110 m3/s (39,000 cu ft/s)[1] |
| Basin features | |
| Progression | Gulf of Papua |
| River system | Fly River |
| Tributaries | |
| • left | Palmer, Elevala, Binge, Agu, Strickland |
| • right | Gu, Ok Tedi, Soru, Burei, Bituri |
The Fly River is the third longest river on the island of New Guinea, after the Sepik and Mamberamo, with a total length of 1,060 km (660 mi). It is the largest by volume of discharge in Oceania, the largest in the world without a single dam in its catchment, and overall the 20th-largest primary river in the world by discharge volume. It is located in the southwest of Papua New Guinea and in the South Papua province of Indonesia.[5] It rises in the Victor Emanuel Range arm of the Star Mountains, and crosses the south-western lowlands before flowing into the Gulf of Papua in a large delta. The Fly–Strickland River system has a total length of 1,220 km (760 mi), making it the longest river system of an island in the world. The 824 km (512 mi) Strickland is the longest and largest tributary of Fly River, making it the farthest distance source of the Fly River.
- ^ a b c David, Lawrence; Tim, Cansfield-Smith (1990). "Sustainable Development for Traditional Inhabitants of the Torres Strait Region". hdl:11017/211.
- ^ "IUCN: The Fly River Catchment - A Regional Environmental Assessment". International Union for Conservation of Nature The Department of Environment and Conservation, Papua New Guinea. 1995. Archived from the original on 14 November 2021. Retrieved 22 November 2020.
- ^ a b c Joseph, Ba Irai (1996). A method of flood runoff estimation in an ungauged catchment (Ok Mani) in the highlands of Papua New Guinea (Thesis). Massey University. p. 35.
- ^ Andrea, S. Ogston; Richard, W. Sternberg; Charles, A. Nittrouer; D. Preston, Martin; Miguel, A. Goñi; John, S. Crockett (2008). "Sediment delivery from the Fly River tidally dominated delta to the nearshore marine environment and the impact of El Niño". Geophysical. 113 (F1): 18. Bibcode:2008JGRF..113.1S11O. doi:10.1029/2006JF000669.
- ^ "Fragmentation and Flow Regulation of the World's Major River Systems" (PDF). Archived from the original (PDF) on 2012-03-30. Retrieved 2011-08-17.