Add a temperature column to your spreadsheet. As noted, the SW is really hot and temperatures are in the shade, of which there is none in DV.
Anything with NP after it will be busy. And personally, every NP has been photo'd to death. It is hard to make an original image in NP. Harder yet to find a camping spot.
It looks like you will spend a significant amount of your 4 weeks driving.
When I travel at that time of year, I shoot the first 3 hours and the last 3 hours. I drive a little in the middle, eat, take care of daytime functions. At night I find camp, reorganize the gear, load film holders, eat again, and sleep. Nights are short and mosquitos thick, especially in Washington, Idaho, Montana. Any place on social media is overwhelmed.
Have a grand time.
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