Saul Raisin's "Raisin Hope" benefit ride is on March 31st in Dalton GA. It's benefiting the Shepard Center in ATL for brain injuries. It's actually a section of the tour de georgia, runs up over fort mtn. There's 100, 50 and 25 mile sections. check out his web page for info... saulraisin.com
<edit> Here is a link to the ride. </edit>
https://www.sportsbaseonline.com/Series.aspx?id=216