It’s estimated that mossing was an $8.4 million to $33.7 million business in 2003, with anywhere from 4.2 million to 17 million pounds being harvested in the two dominant regions, Appalachia and the Pacific Northwest. Moss isn’t commercially grown, and some state and national forests have banned the harvesting of moss because of worries over how its removal affects the environment.
Read (Pittsburgh Post-Gazette)