Hi,

The Camlin River is mapped as two ways and one relation. There are also other relations, so deletion isn't easy.

https://www.openstreetmap.org/way/175002305
https://www.openstreetmap.org/way/430049280
https://www.openstreetmap.org/relation/16091752

The Camlin River name (sometimes mapped as Camlin) seems to extend to at least here: https://www.openstreetmap.org/way/173948437