From where I parked my truck, it was 2.2 miles with 2200' of elevation gain.
The key to doing the northern route is having a high clearance vehicle with 4WD capability. The road gets very rough. The route up the north ridge is
easy cross country with no trails. Take a GPS reading on the summit area and just work your way up to it.
The southern route is shorter and you have less elevation gain to deal with and that would be my recommendation. See Eric Willhite's route as referred to on the main page.