Agree on Torrey's. They have one big, long pull through site so if you have a general idea of when you'll be passing through, call them and make a reservation.
Here's their website.
Hwy 93 just north of Carmen, Id is a great BLM campground with at least two pull through sites, Tower Rock.
Website with a good overview pic
2011 Bighorn 3055RL, 2011 F350 DRW 6.7L 4x4 Diesel Lariat and Hensley TrailerSaver BD3, 1992 Jeep ZJ and 1978 Coleman Concord Pop-Up for remote camping
Dave & Renee plus (Champ, Molly, Paris, Missy, and Maggie in spirit), Mica, Mabel, and Melton