Ed Chu wrote:
going from LV to Capitol Reef, to Canyonlands, to Arches, to Natural Bridges NM, to Hovenweep NM, down to Monument Valley, back to LV ( haven't been there in 45 years, and at age of 74, not going back ); taking my new FujiGFX100s; I have the 32-64 zoom, contemplating buying the 100-200 zoom to take, also.
Any suggestions as to the shooting locations, and any information / suggestions anyone who has used the GFX100s might have will be appreciated.
Utah has a number of state parks that photograph very well. Snow Canyon and Goblin Valley immediately come to mind. Snow Canyon is very convenient from Las Vegas as it is just a few miles from St. George, so is right on your way.
Also if you haven't already seen them Valley of Fire state park and Cathedral Gorge state park in Nevada are beautiful and not really out of your way.
I would also concur that the North Rim in Grand Canyon National Park may be worth a short detour. It's Easy to get to from either St. George or Kanab.
As far as other things to see, it depends on your fitness level, ability to walk and what kind of vehicle you will be driving. There are a number of beautiful attractions between Kanab Utah and Page Arizona, but most of them require either a high ground clearance vehicle or walking. Buckskin Gulch, the Hoodoos, White Pocket, several really nice slot canyons are all in that small area, but may or may not be accessible if you have the wrong vehicle or can't walk much.
Other places to consider might include Cedar Breaks National Monument. Similar to Bryce Canyon, but I like it better for photography. Also if you have not been there you could consider the Kolob Canyons portion of Zion, it isn't crowded and there isn't a shuttle. It has it's own entrance on the northwest corner of the park.
If I were making the trip you are proposing I would look at taking a northern route through Utah going one direction and a southern route on the return trip. The big thing that you have to keep in mind is that there is so much to see that there is no way you can see all of it in one trip, so you kind of have to pick and choose based on what you are most interested in and how hard a specific site is to get to.
What I would do is look at 500 px for photos of the various places that you are going past to see what kinds of shots others have taken. It will give you a good idea of what is in the area. Type in Capital Reef State Park in the search engine and most of the photos that pop up will be from there. Same thing if you search for Goblin Valley State Park, or Arches National Park, etc...