For years horticulturist Joe Hoffman and inmates under his direction at Yankton Federal Prison Camp have landscaped perimeters of the prison grounds for public enjoyment. An example of his work was the Observatory Hill display as Yankton celebrated its 150th anniversary. For some landscaping notes see the following article. Thanks for your visit. Comment if you wish. http://www.yankton.net/river_city/article_365c2f02-2c99-11e3-b99a-0019bb2963f4.html
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