Geograph - photograph every grid square

The River Shannon is the longest river in Ireland at 224 miles long. It drains an area of 6,512 sq miles, one fifth of the area of Ireland.
The Shannon divides the west of Ireland (principally the province of Connacht) from the east and south (Leinster and most of Munster). County Clare, being west of the Shannon but part of the province of Munster, is the major exception. The river represents a major physical barrier between east and west, with fewer than thirty-five crossing-points between Limerick city in the south and the village of Dowra in the north.

The N7 is the main road from Dublin to Limerick. All but 20 km of it have been upgraded to motorway.