Greetings to all. We are newbies to Whitney and will do our first ascent via the Main Trail. We were able to secure day passes from folks who are also offering a campsite at Onion Valley for three nights prior to the ascent. I appreciate that the altitude at Onion Valley will be excellent for aclimitizing, but I wonder about the logistics for the morning of the climb. Do we drive out from Onion Valley, back to Independence, south on 395 to Lone Pine and up to Whitney Portal? Or does Onion Valley have connecting trails to the Main Trail? I will be getting a map, info, etc., but I thought I would tap the knowledge of you nice people on this board. Many thanks in advance for your guidance.