Maskeliya Oya
The Maskeliya Oya is a major upstream tributary of the Kelani River. The tributary measures approximately in length, originating from the hills of the Peak Wilderness Sanctuary, before passing through the Maskeliya Reservoir. Maskeliya Oya converges with the Kehelgamu Oya at Kalugala, forming the long Kelani River. The river is heavily used for hydroelectric power generation.
Features on the river
The following table lists the major features along the Maskeliya Oya, from its origins further upstream. Some dams hold back water, and transfer a percentage of it to hydroelectric power stations located further downstream, via tunnels.| Type | Subject | Location |
| Waterfall | Fairlawn Falls | |
| Reservoir | Maskeliya Reservoir | |
| Dam | Maskeliya Dam | |
| Power station | Canyon Hydroelectric Power Station | |
| Dam | Canyon Dam | |
| Waterfall | Laxapana Falls | |
| Power station | New Laxapana Hydroelectric Power Station | |
| Power station | Old Laxapana Hydroelectric Power Station | |
| Dam | Laxapana Dam | |
| Power station | Polpitiya Hydroelectric Power Station | |
| Dam | Broadlands Dam | |
| Kelani River |