Are there more areas to park other than the tiny lot and the 4 car lot at the end of the road?

No

Hi Rebeqa, the parking lot at the trailhead is the only parking lot for Bicentennial Woods. ACRES keeps the parking lot small by design, so the preserve isn't overcrowded and visitors can have the best experience hiking in nature! If the parking lot is full, please check out other preserves in the area like Dustin, Vandolah, Heinzerling, or Covell.

No but when we went there was about 15 cars there