gular, flooded pits with steeply sloped banks. The angle of bank slope and pit 

 shape contrast with the natural flat floodplain form and the curvilinear lines 

 of the river systems. Where gravel stockpiles remain within the visible por- 

 tions of the study site (such as at Phelan Creek) they create a contrasting 

 unnatural form. 



307 



