I'm planning to go over to Little Rock in September, to do the BDB100 for the first time.  Terrie plans to go with me, but will sightsee instead of riding.  We'll be staying at the Courtyard Marriott...
 
http://www.thebigdambridge100.com/
 
Registration is $45 through July 31st.  They are offering routes of 32, 50, 68, and 100 miles, and rollout is 7AM, like HHH100.  They are capping registration at 3500.  
 
100 mile route map:  http://www.mapmyride.com/routes/view/630187426
 
68 mile route:  http://www.mapmyride.com/routes/view/630169182
 
 
Paul

I've done it 6 times now, you will wonder why you didn't do it before.
 
Only bad thing about that ride is it has to end