For those of you who don't know, last year Hillsborough County had a struggle with budget short falls and they had threatened to close all county parks on weekends and after 5pm on weekdays, and this included the parks that make up "Wilderness Parks". a lot of us and others protested this at county commission meetings and some of us proposed a "parking fee" in order to keep the parks open and save rangers jobs. This proposal was passed and the county now indeed has "Iron Rangers" and a process in place to charge $2 per car for parking at most county run parks.
There is also a option to purchase a Annual County parks pass that will get you into all parks that charge this fee for a full year for $50 for an individual pass or $100 for a Family pass. I suggest if you plan on participating in the Weekly Hole in the Fence rides or even the monthly SWAMP guided ride, you purchase one of these passes to save you money and help support the parks we love.
You can find the mail-in form at this link - http://www.hillsboroughcounty.org/documentcenter/view/1243
it is the 1st form on the page. You can mail or even fax the form in and the pass will be mailed to you ASAP. I got mine in 2 days.