This is easy forest (gravel) road with much of the road suitable for passenger cars (though you'd need a backcountry permit from the visitor center for vehicles, but not for bikes.)
You can use this road to make big loops both within and outside the preserve or to access some of the trails and camping areas within the preserve.
There is a great view of the Valle Grande on the segment between Entrance Road (01)
and Valle Grande View Trail (0201)
. Sometimes elk can be seen in the valley. North of Valle Grande, the road winds in the grassy valleys among several peaks to the north side of the Preserve. West of Valle Grande, the road passes through forested areas and is generally more hilly.