Homolovi! Good for you. You are definitely exploring off the beaten path. A lot of really interesting stuff is simply not publicized and doesn't draw crowds.

A gem I have enjoyed is Pipestone National Monument, much closer to you, sitting in splendid isolation from other NPS areas on the Minnesota prairie,right next to Lake Woebegone. Perhaps you are familiar with it. It possesses absolutely the niftiest nature trail I have ever seen - a real delight...

One other tidbit. in hot climates, it pays to be an early riser. Sally forth at 4 AM and get the heavy work done by 9 or so. Then seek shade and indoor attractions.

Scorpions are not much of a problem. Just don't go turning over rocks and logs. They are quiet little critters and keep to themselves,mostly.