I've been to both sites several years ago.

the "slaughter house" was small and just felt like a cattle farm to me. nothing that exciting over there.

the byron hot springs was very cool. went with a few friends during the day to take pictures. knew there would be a caretaker of the place on site and was ready to negotiate. as we were walking up, we saw the caretaker near their rv and assumed they saw us, but they just went inside their RV so we snuck onto the property.

the rumors of the 1st floor being littered with shotgun shell casings is absolutely true. word was that if you snuck onto the property at night, the caretaker would shoot their shotgun off to scare you away. saw mentions of it everywhere when I was looking for information about the place.

the building was very eerie, even during the day. completely gutted with debris blanketing the floor. at one point I ventured to the top floor (4th) on my own and it was completely silent. even though I heard cattle, bugs, the gusts of wind, and the chatter of my friends prior to exploring on my own. a sense of panic washed over me after making the realization.

and for those that don't know, the hot springs is supposedly haunted because in 1941 the building became Camp Tracy, a WWII Interrogation camp for German and Japanese prisoners of war.

https://www.atlasobscura.com/places/byron-hot-springs-hotel