Recently, Mxsmanic posted:

I see tons of restricted areas, MOAs, Class B, C, D, E airspace, and
the like on charts, but no clear indication of how to locate the
boundaries of these areas other than by pure guesstimate based on
looking at the chart.

Reading a chart, like many other things, is a process that requires
knowledge. One gains this knowledge by studying. Once you have studied and
gained the necessaryt knowledge, you will know that there is no
"guesstimate" involved in knowing the boundaries of areas on a chart. You
have been given ample resources by many posters that would enable the
average person to research and answer this question on their own. Why not
give that a try?

Neil