Fellow angler, Tim Brookens and I decided to try our luck on the Gunpowder last weekend. Because the Gunpowder is tail water flowing out of Pretty Boy Dam, the water stays cold and I mean COLD! The water temperature was 42 degrees and a haze of steam remained on the river all day with this cold water temperature contrasting 90 degree heat.
Before fishing, we stopped at the Backwater Angler fly shop (www.backwaterangler.com) located 5 minutes from the river for a Maryland license and information. They suggested fishing upstream from the Masemore road access and to use X Caddis. We took their advise.
Tim and I had a great time catching a dozen or so wild browns on Caddis as suggested. We saw some rises but quite a few were caught by blind casting in the shallow riffles. The fish we caught were in the 8-11″ range and with beautiful color as it is with wild brownies (picture above does not do it justice). A worthwhile trip!