They have small cabins available on site otherwise you might get a room at the small motel in Mosca which is the town its in or Alamosa which is only about 20-30min away
They have accommodations at the hot springs. Not super great but nothing else close by unless you stay in Alamosa.
We stayed in Alamosa. It's about 20 minutes away. Easy drive.
I would definitely call ahead on the few cabins they do have.
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