Good afternoon! I am trying to draw a shaded ring on a map.
The first step I tried was a simple disk. I achieved this with the following:
GeoGraphics[ RegionDifference[ GeoDisk[Here, Quantity[10.5,"Miles"]], GeoDisk[Here, Quantity[11.5,"Miles"]]]]
This fails with "...is not a correctly specified region."
Then I thought I might use a
GeoCircle, setting the thickness to 1 mile, but it seems you can only specify something like "Thick", not a geographical distance.
I don't have much experience with Wolfram Language, but this is what I've tried so far. I've also found the GeoGraphics tutorial and the Maps & Cartography guide related and useful. So, am I missing something to achieve what I want [a 10-mile radius shaded ring with a thickness of 1 mile]?