All -- I'm looking to build a wall to hold back the hill, frame up a new
patio, etc.. I'll also be making some planting beds with thes same
materials. The idea is to use 6x6 beams, much like one sees on many of the
landscape shows.

I was looking about at my local Home Depot today and came across their 6x6s.
A thought came to me -- treated lumber contains a variety of chemicals that
are not the most friendly. Anybuddy know what type of wood, treatments,
painting/staining, etc. I should be looking at for this task?

Noc.