I've updated this Meetup. Meet location has changed to upper parking lot inside of park.
For more details, see the full listing:http://mountainbikes.meetup.com/85/calendar/11165396/
When: September 2,[masked]:30 PM
Marriottsville, MD 21104
If the changes affect your plans to attend, please take a moment to update your RSVP. (You can RSVP "No" or "Maybe" as well as "Yes".)
You can always get in touch with me through the "Contact Organizer" link on Meetup: http://mountainbikes.meetup.com/85/suggestion/