 It also contains Florida's Prime meridian marker monument which is the foundation point for most land mapping throughout Florida.The park as conceived in 1971 had a stream and shallow waterfalls but it closed because of soil contamination and toxic waste left buried by the gasification plant that once occupied the site.It was cleaned up with Department of Environmental Protection funding in 2006 and construction on the new park was initiated in 2010 using money from the penny sales tax.