I didn't see any either, we were there on July this year
Stables are used primarily for the guided horse riding. You will have to call for special accommodations.
I didn't see any when we were just there
You can call them and ask. I wasn't staying there just driving through on the way to Kalispell and we stopped there for a bathroom and to eat lunch at the cafe.
We did not stay long to find out we just went into the pools in the hotel structure. It began to rain we had to leave. I suggest looking for their website.
Thanks! Your answer is awaiting moderation.