Dendritic (branching like a tree): developed on flat-lying, homogeneous rock or unconsolidated sediments.

Radial: water running off a volcano or dome, flowing from a central point.

Rectangular: underlying rock is cut by joints or fractures that get easily eroded by streams.

Trellis: occurs in mountainous areas, where rock layers have been folded and eroded to expose long resistant ridges, with valleys flowing in the valleys, but occasionally cutting a ridge.