I'm new to this so forgive me if I'm not doing things correctly. I'm taking my daughter on some college visits in August. We're driving from the Minneapolis area to Denver and checking a few schools around there. Then driving from Denver to salt lake city, checking out Hanging Lake and Little Wild Horse Canyon along the way. After a school tour in salt lake we plan to head up to Bozeman. My biggest question is about that drive. I believe it's about 8 hours without stopping. If we leave salt lake around 1pm, Can anyone tell me what the last few hours of that drive might be like? What time will the sun set in August? Is it treacherous mountain driving? Will we be driving through the mountains in the dark? Will there be any major traffic delays on the west side of Yellowstone? Is that a reasonable drive? We don't have time to spend in Yellowstone, so I don't mind bypassing that. Just need to get from point a to point b for that leg. After the Bozeman school tour we'll head back to MN by way of the South Dakota attractions.
Any advice on the above mentioned leg or anything else along the way would be much appreciated.