What do you reckon qualifies as legendary fly fishing? Should qualification entail insane numbers of huge fish that crawl up the line and try to rip your arms off, or might the actual location and overall experience be as important as the fish you are trying to catch? How about chasing the world's largest trout species in a country as remote and under-populated as Mongolia? Henry Gilbey investigates.

Fly fishing for taimen at the ends of the earth. Henry Gilbey goes to Outer Mongolia to fly fish for terror trout