The upper Shannon above Lough Ree holds brown trout in a slow, limestone-rich environment. The river meanders through the midlands — more intimate than the lower Shannon, with good mayfly hatches in May–June and sedge activity through summer. Access is largely free with a state rod licence.
Hatches & food
EPA river-invertebrate monitoring confirms mayflies, stoneflies, caddis, aquatic diptera and freshwater crustaceans are present through the Upper Shannon's monitored segments. This is food-presence evidence only, not a hatch record, and says nothing about when or how strongly any of these groups emerge on the day.
- Limestone