Pullo, I just saw your post tonight. Something I've done is take a spade shovel and dig a small footing the width of the spade and say a little less than 6 inches deep along the bank of my pond. After digging footing I mixed concrete and sand together with a fairly wet mix so when I poured concrete in footing the concrete would find its on level.
Once concrete setup I used Arkansas field stone and made me about a 1 foot high wall and backfilled with dirt. I put the stones together with a good heavy mix of concrete. You can use the black dyed concrete to hold your stone together. The black concrete looks pretty good against the dark colored field stone.
