Kreppa is a short tributary of the 206 kilometres long Jokulsa a
Fjollum. It mainly discharges the westernmost corner of the
immensely wide glacier tongue Bruarjokull, where it is barricated by
Mts Kverkfjoll. One of the main access roads of the Mts
Kverkfjoll Area crosses the bridge of river Kreppa, which has
repeatedly suffered damages by floods (glacier bursts) in the past.
It is actually the largest tributary of river Jokulsa and the
confluence, further north, is almost opposite the spring fed tributary
Linda discharging the Herdubreidarlindir Area.