The northern half of Key Largo is mostly preserved natural land. That northern half is bisected lengthwise – from north to south – by Route 905. The Dagny Johnson Key Largo Hammock Botanical State Park ("Dagny Johnson Park") comprises most of the land situated east of Rt. 905; the Crocodile Lake National Wildlife Refuge constitutes the majority of land situated west of Rt. 905.
Some months ago, Dr. Wilder initiated an inventory of the species of vascular plants growing within Dagny Johnson Park. The Park's extensive, comprising 2,421 acres and measuring, approximately, ten miles long. "It will be challenging to complete the plant inventory," notes Dr. Wilder. "I hope that I’ll be able to do so. Completion could require years of work!"
Key Largo Botanical Park History
Dagny Johnson Park contains large areas of tropical hardwood hammock and mangrove vegetation. Present, too, are salt marsh, a very small area of beach vegetation and disturbed land. Parts of the Park are remnants of a Nike missile base dating from the Cold War period, which was functional from 1965 to 1979, approximately.
The Park was established in 1982 and is named after Anna Dagny Johnson, a local environmentalist – now deceased – who led efforts to save the Park land from development.
Two developers tried successively to develop the area with numerous condominiums and hotels before the Park was established. Fortunately, both attempts failed and both developers declared bankruptcy.