Rob,the small rip-rap ( about the size of a softball ) they also call it Gabion is $ 41.75 a ton here in my part of La. I'm going to use 18 tons to cover just 2 the sides of the pond. It will be 3 feet wide and 100' long for each side. One end of the pond already has the rip-rap and the other end is a levee. I used burlap to cover the slopes on the levee and that seems to work fine to control the erosion and it lets the grass grow through it. I can't get a slinger truck as Ryan suggested, to the pond or I would definitely use that to save a lot of work and have the stone spread uniformly. I have to use a bobcat to move the stone and then even it out by hand.