Fly-fishing is very popular along the rushing waters of Spearfish Creek. Fish species include rainbow, brook, and brown trout. A few sites, as posted, are restricted to Catch and Release. Fishing licenses are available at the Spearfish Canyon Lodge at Savoy, and the Cheyenne Crossing Store. Fisherman are requested to protect the natural conditions along the creek bank including fallen timber, natural shrubs and grasses, and beaver activity. Good luck asking the locals where the best fishing-holes are located ... you are on your own to explore the answer. They do say that both dry and wet flies are effective.