For those of you stuck on finding all of the lion’s arch vistas, i’ve made an interactive video where you can select which location you are missing on the map and find then get a tutorial on how to get to it. The map starts 40 seconds in or check the description on the vid.
Its also a good fun watch even if you know all the locations.
http://www.youtube.com/watch?v=Jzah63Zz5zw