It is endemic to Colombia where it is known from the eastern slopes of the Cordillera Central.

[2] Its natural habitats are sub-Andean forests alongside streams.

It is threatened by habitat fragmentation and loss caused by agricultural expansion, timber extraction, and water pollution.

[1] Nymphargus rosada are relatively small frogs: adult males measure 24–28 mm (0.94–1.10 in) in snout–vent length.

The skin of the dorsum is finely shagreen with small pustules.