Did a short ride at Little Bennett in Clarksburg, MD. Video below is sample of several trails throughout the park. Only 1/2 the park is open to bikers. The entire side for biking can be covered in 2 hours. It's a good mixture of road, dirt road, single track. It has several technical short climbs. There also couple of long climbs also. You can definitely get a good workout. This is best watched in HD.