Alta Dena Dairy is located on Tampa Avenue cose to Roscoe Boulevard in Northridge. Alta Dena Dairy is not your average convenience store. In addition to being locally owned, the outside of the building is decorated with many attractive hand painted signs and lettering advertising their services. The building has been serving dairy since the 50's. Many older patrons can remember when their was a cow pasture behind the building. Alta Dena Dairy still offers a drive through dairy service.