This same topic sparked some lively discussion on the VWA email list-serv last month.
I've long thought that the drainage you mention
(sometimes called "Little Redwood Gulch")
contains the southernmost native stand.
However, there are quite a few redwoods of unknown origin along San Carpoforo Creek
& it's possible that these comprise the southermost native stand.
The San Carpoforo trees seem fairly young & lack noticeable fire scars;
also, redwoods are curiously lacking along Salmon Creek,
which would seem to be a fine habitat.
Someone mentioned DNA evidence as a means to put the argument to rest once & for all???

Exactly that is where we found it and the sothernmost tree in that southernmost grove is just about right on Highway 1. Here it is in Google Maps (http://bbs.keyhole.com/ubb/showthreaded.php?Cat=&Number=1238368&page=0&vc=1#Post1238368)

I would like to see the pictures of redwood trees south of here that might possibly be wild.

From all my hiking, it is in a canyon along the Buckeye Trail south of Redwood Gulch and north of th Soda Springs Trailhead. It should be easily found on Google Maps.

Hi

Lindsey Holm and I just finished walking our transect of the entire range of the redwood tree. We are just starting to compile that data and would like to share it with all of you. You can download the entire track for Google Earth from the sidebar (http://www.redwoodtransect.org). Please look at blog and see if you can add some GEOCOMMENTS. We are particularly interested in changes with the fires. We have thousands of georeferenced photos that we will be posting to our blog in the coming month.

We are also interested in where all you Big Sur people would put the southernmost native redwood. I am going to post a placemark in the Google Earth Community where we think it is. You can find other Google Earth layers there already:

(http://bbs.keyhole.com/ubb/showflat.php/Cat/0/Number/1237364/an//page//vc/1)