
As tide dropped I was amazed by the extent of the rocks - both those that became visible and other barely submerged rocks where standing birds clued me in. Especially alarming were rocks in places I previously considered safe.
In some areas the rocks were in groups like mountain ranges. The core area up toward Stoney Bayou looked like a cathedral. Elsewhere I saw occasional jagged spikes.
On the way out of Palmetto Island - where I ended-up poling for a good distance - there were many places without protruding rocks but with rock-grass - long strands of a thick weed indicating a near substrata of limestone.
My goal is to plot the rocks along with coordinates on high resolution landsat images. Landsat is nice since the seagrass shows with shades of red and non-vegetative areas jump out as white and grey. So this week instead of my normal after-dinner-routine of listening to the wife and watching the Jon Stewart Show I have been working with ArcView, Google Earth with my waypoints imported, and a DEP website that allows for input of coordinates (http://eraonline.dep.state.fl.us/). It's looking like the final product will turn out nicely but it will take some truthing this weekend and more computer time.
Meanwhile I can share some preliminary results from the Black Rock area using horrible quality Google images.
I always thought Black Rock was pretty much the furtherest thing south although I have heard of a Death Rock to its SSW. Well it turns out there is more than one Death Rock - or as I know think of them - Black Rock Sentries:

Black Rock is in the cluster toward the upper middle of the image.
Here are the coordinates - and I offer these without warranty - obviously navigation of this area is at your own risk.
RG BR 01
N 30 03.632
W 84 07.262
RG BR 02
N 30 03.650
84 07.284
RG BR 03
N 30 03.756
W 84 07.321
RG BR 04
N 30 03.765
W 84 07.324
RG BR 06
N 30 03.912
W 84 07.375
RG BR 07
N30 03.916
W 84 07.372
RG BR 08
N 30 03.876
W 84 07.102
Around Black Rock itself there is a cluster of other rocks:

RG Black Rock
N 30 03.955
W 84 07.138
RG BR 09
N 30 03.946
W 84 07.190
RG BR 10
N 30 03.960
W 84 07.195
RG BR 11
N 30 03.973
W 84 07.179
RG BR 12
N 30 03.956
W 84 07.143
RG BR 13
N 30 03.966
W 84 07.086
RG BR 14
N 30 03.975
W 84 07.088
Look for me out there this weekend - moving at idle speed.