I am searching for butter to make my homemade ghee. I know Kerrygold unstalted butter is the top choice (given Irish cows are mostly grass fed), but it's a little hard to get around my area. so I saw this Unsalted butter from Horizon http://www.horizondairy.com/ at my local market and wonder if their cows are grass fed.
Horizon is not good milk, not grass fed. You might want to see if you can find Straus Dairy where you're at. What local stores do you have? Alberstons, Safeway? Little health-food stores? Most places will order things for you if their distributor chain carries them.
Their cows have "access" to pasture, but that's not the same as pasture-raised. Plus, Horizons sources their milk from a number of company and non-company owned farms, so it's highly doubtful that all the cows (even if some) are entirely grass-fed.
Where are you buying the milk at? We've had luck in buying milk in glass containers - the bottle doesn't say it, but the brand we buy (can't think of it at the moment) supposedly sources milk from grass-fed cows.
I agree that Horizon is not a good choice at all. I keep nagging my local stores to stop carrying the brand entirely but it's unfortunately a big seller. Keep looking (or buy a bigger freezer so you can REALLY stock up on the KG!)