I'm working on a xamarin android project Visual Studio 17. I've gone and fetched the .mmpk that I need. My question is how does it get on the device? In a production scenario, is the user expected to download a 2.5 Gb file on their phone??! All the examples that I have seen online use a GUID-like string, specified to a server somewhere. Well, that's all well and good as long as my app only ever needs to look at Yellowstone Park. How do I find a GUID-looking thing that covers the area I'm interested in? I don't yet have the correct licenses in place, but the docs have been implying that I could be using this stuff in Dev for free. Show me the M... Maps.