By Kate Smigiel 
Artist Hans Baumann spreads bio-carbon, a black charcoal often used as a fertilizer for agricultural crops and ornamental plants such as orchids, as part of a large-scale art installation on Cougar Mountain.

By Kate Smigiel
Artist Hans Baumann spreads bio-carbon, a black charcoal often used as a fertilizer for agricultural crops and ornamental plants such as orchids, as part of a large-scale art installation on Cougar Mountain.