Update: Fence Gate

I thought I'd better post a follow-up so that you could see the finished gate. It will be quite useful - in fact, tonight at dusk we took the dogs through it and out into the mesa for a nice quiet walk.
Here is the gate from inside the back yard:

Here it's open so that you can look out onto the mesa:

And this is what it looks like from the outside - pretty cool, right? No visible sign of a gate here - if you look closely you can see Jay's head looking through the lattice! (The different colored fence slats are just newer slats, they are not a part of the gate.)

Jay created a string-pull system so that we can open the gate from the outside, and it's locked from the inside when we're not using it. Jay is so clever, he should have been an engineer!