[AccessD] How many rows populated in range

Does anyone know how to determine how many rows of a range are actually
populated with data?

I have a range with 

Doc	DocDescr	Otherstuff	etc
1A	Some Desce	Etc		Etc
1Ai	Other Descr	Etc		Etc

The range is potentially up to a hundred and some rows.
Doc and DocDescr will always have data in it, but the other columns might
not.

Is there any property of the range that says what the last occupied row is?

Are there iterators for ranges, i.e. "for each row in Range" kind of thing?

John W. Colby
www.ColbyConsulting.com