River valley 2D: steep and shallow slope

Illustration of river valley base with steep slope

Illustration of river valley base with gentle slope

Illustration of shallow river base

Illustration of stream base with springs and perched water table

Illustration of coastline base with steep 45 degree slope

Illustration of stream base with aquiclude and spring

Illustration of a stream with river valley and water table

Illustration of a 2D coastline indicating sea-level rise and continental slope