Location. 1  The current marker at the exact Four Corners point, placed in 1992. 2  The evolution of the borders that make up Four Corners, beginning in 1850. 3  The borders that make up Four Corners, along with the year each border was officially surveyed and marked.
User experience. User experience (UX) refers to a person's emotions and attitudes about using a particular product, system or service. It includes the practical, experiential, affective, meaningful and valuable aspects of humanâcomputer interaction and product ownership.
History[edit] The field of user experience design is a conceptual design discipline and has its roots in human factors and ergonomics, a field that, since the late 1940s, has focused on the interaction between human users, machines, and the contextual environments to design systems that address the user's experience.