* Regular freezing in the winter near the source, leading to ^^freeze thaw weathering^^
* Intense rainfall can lead to ^^landslides^^, so more material in the river
* ^^High river volumes^^ can increase geomorphic processes
* ^^Limestone^^ is vulnerable to ^^chemical weathering^^
* West of River Eden there is ^^impermeable rock^^, making ^^flooding more likely^^
* ^^Sandstone^^ is prevalent in in middle+lower courses, ^^increasing erosion^^