Welcome. Nice finds especially the metate. Nice assortment of material used for points and drill bits. Unclemac gave you some good pointers. Also look on the east side of hills as they like to set up camps there to enjoy more sun.
ranch you say?....think like a man living off the land...look for high spots on your property with the best views closest to a 360 degree view...look for debris like small flakes of chipped stone that don't belong where you see them. Walk along the dry washes and if you have junipers, consider that even though they are not all that big, they are HUNDREDS of years old and people sheltered under them. Also, find the areas where you can "dig" for water...low spots where rain collects off a rolling landscape or gullies. These are the areas you should concentrate on. Also consider what a wounded animal would do...where would it go...
Unclemac, I was curious about the high spots. Why did they like to camp there. When I'm up on those high spots it seems like the wind is always blowing and it's kinda miserable. To me, I'd much rather camp down in a canyon with some shelter from the wind, or maybe some shade etc. I know everyone is going to say they wanted to keep a watch, but what were they watching for? It doesn't seem to me they were opportunistic hunters, it seems they would have known whatever game they were after intimately and would have gone out on organized hunts rather than just, ohh look, some game came into the valley lets go get it. I do see a significant amount of debitage and activity along the high bluffs along the river, so you are right about your places to look.