Spatial data

Question

What are the . net classes for working with geographic data (latitude, longitude, etc)? During a search I found the namespace System.Spatial but I saw in a forum someone advising against its use for being obsolete. Looking at the doc of this namespace I saw that most of your classes are abstract classes. I have a project where for several classes Model i need to have a property that will represent the geographical location. For example, for a class Cliente I’ll have a property called Locating which will store a geographical coordinate (latitude and longitude). I thought of creating a type Coordenada, a simple class with two properties where one would be latitude and longitude, but I thought there might already be something ready and more sophisticated.