May. There are foot trails and side roads on the left from time to time which are great to explore as well. Much of the area to the right is private property and seriously posted. Turn right and go up North Creek. Every foot of this road is great birding. Look and listen for Louisiana Waterthrush, Northern Parula, black-throated green and pine warblers.
North Creek is one of the most beautiful trout streams in Virginia.
Great experiences are everywhere with wildflowers, birds, ferns, etc. Park your car in the parking area and walk back along the road .5 of a mile to a gated fire trail to your left. You could also encounter turkey or grouse. In early May you may be overwhelmed by thick banks of fringed polygala. Walk as far as you like up this trail.