Thanks to Josh Reider for the stream report and pictures from Big Spring:

Fly fishing the ditch at Big Springs is a completely different game, there is virtually no flow, the water is gin clear, and it embodies the idea of sight-fishing. It is a rewarding and fun time. I have been fishing it the past couple of weeks attempting to catch one of the 20 plus inch rainbow that you can see cruising the channel. I have not had the luck to land one yet but have landed lots of brook and rainbow trout. The most productive way of fishing is to nymph a scud behind an indicator fly. Unlike other streams I have not hooked on fish on the indicator fly but have watched many eat the scud. I have also been fishing a tiny BWO to fish I see rise and have had almost every fish eat. On this stream it is essential to watch the water before fishing, then to crawl and cast from a seated position so the fish cannot see you. Otherwise you will end the day frustrated that you didn’t see a fish all day. Big Springs offers a great unkept secret fishery that makes for a great day trip and is only an hour and a half from the Gunpowder River.

Thanks,
Josh