Actually, Zen, I got responses from two of the delegates I e-mailed about it that seem to imply that it might not be unfounded:

Dear Ms. Davis,

Thank you for contacting me. I will keep your comments in mind as I consider the various bills presented to the legislature for the special session.

Sincerely,

Del. Dan Morhaim, M.D
Dear Tammy,

Thank you for contacting me. First and foremost, it is a priority, especially in the upcounty, to retain and preserve open space. We (State of Maryland ) are in a bit of a fiscal crisis but I can assure you that I will do my best to ensure that the scenario you mentioned does not come about. I am a mountain biker as well and my family and I enjoy hiking through Seneca Creek Park .

I would never vote to close down any park unless for some dire consequence and the fiscal nature you speak of does not warrant such.

Thanks again and you can count on me.

Delegate Craig Rice
There was also a link to this Washington Post article at M.O.R.E.

Even if it is something that's unfounded or that's been blown out of proportion, voicing your opinion on even the possibility of something like this to you delegates cannot be a bad thing.

And the South Mountain Complex is most likely the area between Middletown and Boonsboro: Turner's Gap, Fox's Gap, where the Reno Monument is located, etc. Basically, the area in which the Battle of South Mountain was fought.