We took the Maple Springs road up to where it connects to Harding and N. Main Divide.  The drive is mostly single lane and the last 4 miles of it is a somewhat rough dirt road.  Average speed on that stretch was ~10mph.

Plenty of space to park once you get to the N. Main Divide intersection (one of my pictures is looking down at that spot – you can see other cars parked there).  And then it's 9.5 miles RT.  Beautiful day for a hike, almost too warm.  This route has really nice views the whole way.

It is a fire road basically the whole way so you will have motorcycles, offroad trucks, and bicycles, more so than hikers, though we did see some.