I have made the ICW trip from Beaufort to Charleston many times. When we travel by car to Charleston we cross all three rivers that wind up in Saint Helena sound. We are thinking about running up these rivers at least as far as Hwy 17.
My question is, where can I find charts or maps that show the rivers and hopefully some navigation information?
Thank ya’ll in advance!
Nowcoast marine has a interactive map of everywhere. If you use it right it marks oysterbeds and channels and more. Its kind of hard to use on a cellphone and sucks on slow internet connection on a computer. But there should be a noaa map. I think 11516 or 11519 should have something to help but nowcoast is the digital most up to date version of same maps
Just follow the crab pots.
2002 17’SeaHunt
Thanks 40inch, that nowcoast is very cool. I never knew about it. And I will watch out for the crab pots!
ZX
Combahee is pretty much smooth running all the way to 17.and pretty much the same for the Edisto, watch for some shallows around Willtown. The Ashepoo can get a little goofy around Bennett’s point until you make it up river a piece… If you have a t top you may not make it all the way to 17 as there is a railroad track that may stop you depending on tide.
Hope you do this and post back, some beautiful rivers and tons of good fishing spots. 
Incredible history on these three rivers and the early times of prosperity along them. the below link has some decent info on the ACE basin…
My personal favorite is the Combahee… If you care to venture up past 17 some beautiful scenery. As far as the Edisto, if the tide is up and the river is high you can go a long ways past 17… if the river is down watch for many shallows and the need for a smaller boat. Past 17 on the ashepoo… not much. Pull up Google Earth.
I decent topo map…
https://www.topozone.com/south-carolina/colleton-sc/stream/ashepoo-river/
Google earth is hard to beat! Print out the sat pictures on my printer and keep them in a note book in sheet protectors. Good luck on you trip. Be sure to take a good camera, you’ll see aligators, deer, birds of all types and lots of rice patty gates, usualy see a lot of sturgen jump. Watch for the bars at low tide!
https://webapp.navionics.com/ Zoom in and enable Sonar Charts.
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