When the colors change, the adventure and beauty heightens in Spearfish. Every September and October visitors from around the world come to experience the fall splendor of Spearfish Canyon. High limestone cliffs, waterfalls, towering spruces, Ponderosa pines, aspens, birches, burdocks, and box elders perfectly frame this creek carved gorge making Spearfish a truly awe-inspiring place during the autumn months.