Friday morning we went to Ely, got gas, and started calling and visiting tire shops. We couldn't find a 215/75/15 of any kind but they did replace one of B's valve stems that was leaking. We'd found Devil's Gate slot canyon online that was roughly on our way so we started heading that direction.
Going up the mountain pass we came upon a full size pickup truck with ~20ft enclosed trailer. Truck had a Green Bay Packers sticker in the back window. Fortunately he was pulled over just enough for us to squeeze past him. We stopped at the pass/saddle to enjoy the view and then B saw the truck and trailer coming. We ran back to our cars and made sure we stayed ahead of him. Going down was a narrow, rocky, dirt switchback mountain road. I have no idea how he was navigating it but we looked back when we were near the bottom and could see him slowly working his way down.
Continued east through the desert down some washes/canyons. The last one was quite fun, we could go there quickly since it didn't have 2' deep ruts like the Vegas to Reno course. Took it to Devil's Gate.
We hiked through it and up to the top and drove out of the wash and while there was a large flat gravel area that could be called a parking lot, there were no signs of any kind this awesome slot canyon is here. It's limestone which is unusual, most slot canyons are sandstone. So the rocks here are polished.
From here we headed back into Utah towards Massey northern #13, a portion of the old pony express route. On the way we took a side trail up a wooded valley along a stream with an amazing alcove in one cliff.
Cut across Massey 13 and headed north through some hills on some fun trails.