Joe Hoffman, horticulturist and inmate teacher at Yankton Federal Prison Camp, shows staff and inmates that the grounds they see every day are worthy of effort, along with landscaping intended for public view. On the back side of this public prison perimeter sign is an example of beautification for those who see the grounds within the walls every day. See the article about Hoffman and his work at: http://www.yankton.net/river_city/article_e474d0ce-2197-11e3-b461-001a4bcf887a.html
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