Blakely LaCroix wrote:

Question are a Dory and Drift boat the same thing? And is a MacKenzie
just a specific brand? Are there any commercial products are these
all the creations of specialized builders?

A dory is any smallish hard-hulled boat generally rowed by one person.
They were originally for fishing at sea and often have a curved hull
and keel. A drift boat is more for rivers, shortened, widened, and
with a flat bottom. The McKenzie (named after a river in Oregon) is
a style of drift boat that can handle moderate rapids and is good for
backferrying and dropping anchor while fishing.

http://www.spirainternational.com/hp_driftboats.html

I agree with Chuck: it would be great to have a dory. They hold lots
more gear than a raft, more conveniently in compartments, and are more
of a challenge to row because they are less forgiving than inflatables.
If you hit a rock, it could destroy the boat, so more skill is needed.
Nothing like a challenge.

The amazing thing is that when Powell's men rowed down the Grand Canyon,
Galloway style (rowing while facing downstream) was not yet discovered.
They went backwards!