In article ,
Mxsmanic wrote:

How do I know if I'm in the southwestern tip of the Turtle MOA on the
chart that covers Arizona, for example?

You are mightily confused, my friend. The Turtle MOA is (mostly) in
California, not Arizona.

There are no landmarks given.

Do you see Cadiz lake?

I've looked very carefully at sectionals.

Apparently not.

rg