Spatial data types in Entity Framework and MVC

I was slapped with another funny one with Entity Framework and MVC today. I wanted to access a System.Data.Spatial.DbGeography part of the Entity Framework in one of my views. But I kept getting the error saying that DbGeography was in an assembly that wasn't referenced.


ASP.NET MVC 4 Mobile friendly, client customisable, localised website

My current task is to investigate what technologies to port the current WebForms application to, it's been decided that we will go towards MVC, but I need to determine what extra technologies will be needed to match (and of course, better..) the current site.