The Inn is actually privately owned and run but we had a Ranger-led tour today. It is sort of a mix of California mission architecture and classic national park stone and timber. It has these wonderful gardens. They are watered using the 90F spring water that also feeds the flow through pool. All pretty extravagant for this desert place. It is a little upscale; rooms start at $350/night. Just a little different than camping fees. We did try out their restaurant though. I had a smoked gouda, fig, and prosciutto pizza with spinach. Far from traditional Midwest pizza but it was wonderful.
I think there should be a National Parks Lodges tour. I guess I should check online. Maybe there is . I definitely plan to make sure that we check them all out as we pass through. They seem to have great stories behind them and those we have seen are wonderful buildings.