Big Dam Bridge Little Rock

Has anyone ridden this organized bike ride that can tell me if the 50 mile route is very hilly? A group of us are going in September and have signed up for the 30 mile route....but we r thinking to change to the 50 miler.... have heard it is pretty hilly.....Does anyone know if it is???

The 50-mile route on the BDB 100 has a few short rolling hills, but nothing too daunting. There are two good-sized hills on the century route, but these aren't too bad.