Hiking far west in hills in West Bench in West Jordan far west in Terraine new home area about 7300 West and about 7400 South. This dog ran up to me very happy beautiful dog I don’t know breed and was very thirsty gave the poor thing water. Skinny with excess skin maybe from weight loss. No collar. He/she ran down hill to men working on new home so I thought it was their dog. But when I was leaving area I decided to just check with them. They told me that the dog comes and visits and sleeps in new homes it can get in to but they have no idea who the dog belongs to. I drove around to and ask several people but know body knew the owner and the dog ran back up the mountain or hill far west in Terraine new home West bench area. Very worried and concerned about dog. If you know the owner or can verify the dog is safe I would be very grateful.