The River Bann (Irish: an Bhanna, from ban-dea, meaning "goddess") is the longest river in Ulster, its length, Upper and Lower Bann combined, being 129 km (80 mi). However, the total length of the River Bann, including its path through the 30 km (19 mi) long Lough Neagh is 159 km (99 mi). Another length of the River Bann given is 90 mi. The river winds its way from the southeast corner of Northern Ireland to the northwest coast, pausing in the middle to widen into the enormous Lough Neagh. The River Bann catchment has an area of 5,775 km². The River Bann has a mean discharge rate of 92 m³/s. According to C.Michael Hogan, the Bann River Valley is a settlement area for some of the first human arrivals in Ireland after the most recent glacial retreat. The river has played an important part in the industrialisation of the north of Ireland, especially in the linen industry. Today salmon and eel fisheries are the most important economic features of the river. The river is often used as a dividing line between the eastern and western areas of Northern Ireland, often labelled the "Bann divide".