| Information on erosion includes the registration of the number of rills, gullies and accumulation zones. |
| These streams appear from the crevices of the rocks running through rills and gullies. |
| The rills which drain the eastern slope carry much of this broken stuff into a small arroyo that winds to the left of the mesilla. |
| A linked watercourse is planned, with cascades, ponds and rills. |
| Flow velocity increases, and the increased energy detaches more soil particles and transports them in tiny channels called rills. |
| The river is about 30 m wide here, alternating between pools and rocky-bottomed shallow rills. |
