While in Twin Falls we stayed at the Twin Falls 93 RV Park. If you're continuing south on 93, this is a good place to stay. It gets you south of Twin Falls and on the way to your next destination.
It's an ok park for a transit. The lady who works the desk is very nice. She has an adorable chihuahua, wearing a sweater. She and the dog lead you to your site. Our site was not really long enough to leave the truck attached to the RV, but we did it anyway. We were not the only people extending slightly into the road. There are many stockyards in the area. When the wind is right, you can smell them.
Water pressure is very low. We had to turn the water pump on in order for me to rinse my hair in the shower. Verizon 4G was good. Power is good. Sites are not totally level, we had to use the HWH. Interior streets and sites are gravel. Sites are really narrow.
It's not a spectacular park, but it's right on 93 and easy to get in and out of.