Telerik Platform allows you to store Geo Points that contain geographic coordinates (longitude and latitude). GeoPoint support is a powerful way to preserve data from GPS relating to check-ins, addresses and places of interest. Once you define a Geo Point field, you can execute queries that retrieve items that are near it. Telerik Platform also supports queries of items that fall within a circle, rectangle or polygon shapes. The values in the queries should be actual Geo Points on the Earth.
The .NET SDK does not directly support Geopoints but you can make RESTful requests to implement geolocation services in your app.