The Héria is classic Jura water on a small scale: a limestone stream with the clarity and temperature stability of a proper chalk river, where the trout live long enough to learn every fly in the box and are perfectly happy to show you they've done so. The fish are wild, the water is transparent, and the upstream dry-fly drill is the only way to fish it with any self-respect. Work upstream in short, precise casts, keep out of the water when you can, and treat every presentation as if it's your only one. Olives in spring, caddis through June and July, terrestrials in the low water of late summer. This is not a numbers river. It's a river where you go home remembering three fish in detail because each of them required something specific from you.
- Limestone