Roger:

True, the 2 lat/lon pairs are a line. I implied that a width of some size would be applied to this line (maybe 30-60 km or so ?).

I see that your method requires a closed polygon of some sort...hmmm. The masking would be OK.

Is the Encarta Globe some type of programming utility for True Basic ?

Yes...I would create the data file with the lat/lon pairs and number for color(s).

I suppose we could trade some emails on this.

$.02