At first I've found out that I can't refer SObject field with type Geolocation directly, I get
Data type not supported: Location
But I can access mySObject__Latitude__s and longitude.
I've tried to use Location class in code and it's not compiled. I've tried to do that in many API versions of a class.
Is that class available in any API version? If not - why is it described in docs? And why when I call
describeSObject and get fields of SObject, I get SoapType
location which is not supported?