Hi ParrotHeadWNY, you can always simply copy the URL for the map tile, create a post such as the one you just did, then after your description/question, just click on the "hyperlink" button (the 4th from the left at the top of the editor - looks like 2 chain links) and paste your link in the popup window that appears. You also have an option to type in a description (text) that will show instead of the actual hyperlink. Just keep in mind that the entire map tile is shown. If one needs to zoom in or out in order to make something out, it's best to suggest that in your description.
A good way to show something zoomed in is if you can take a screenshot. You zoom in to show what you want, take a screenshot and upload that to your post using the "upload" button (7th from the left), and then you can always add the hyperlink below it or above it. Just remember where your screenshots are saved to so you can browse to that using the popup window from the upload button. I hope this helps and I didn't get babbling on too much, as I often seem to do.