A stroll through Spearfish Canyon will show that leaves are starting to change colors. This is essentially due to the breaking down of chlorophyll. The thought of why leaves change colors and why each...

Nestled only three miles away from Black Hills State University in Spearfish, S.D is the mouth of Spearfish canyon. Gazing up among the towering canyon walls one will see groves of ponderosa pine and aspen...