East of Atlanta, the Rollin Haven MX has a motocross track designed for serious riders. It has doubles, triples, camelbacks and rhythms.
Directions from Atlanta:
Take I-85 N toward Greenville (GA-400) - go 21 mi
Continue on GA-316 E toward Lawrenceville/Athens - go 6.2 mi
Continue on University Pky NE - go 0.3 mi
Continue on GA-316 E - go 4.1 mi
Continue on University Pky SE - go 5.7 mi
Continue on University Pky - go 23 mi
Take the GA-10-LOOP N ramp - go 0.4 mi
Merge into US-29 N/US-78 E - go 3.0 mi
Continue on US-129 N/US-29 N/US-441 N/US-78 E - go 3.3 mi
Take the GA-10/US-78 exit 8 to Downtown Athens/Athens Airport/(US-78-BR) - go 0.4 mi
Turn right at Oconee St - go 0.1 mi
Continue on Lexington Rd - go 7.4 mi
Continue on US-78 - go 5.3 mi
Continue on Athens Rd - go 1.1 mi
Bear right at US-78 - go 7.0 mi
Turn left at Hogans Store onto Stevens Grove Church Rd - go 2.5 miles
Rollin have is on the right - you will see the SIGN.
Overall, Rollin Haven MX is the 27th most popular dirt bike trail of all 30 dirt biking rides in Georgia.