Align Vertices to Terrain

Is there a way to align all vertices in a spline to a terrain? I have a complicated terrain and I have drawn a spline with say 10 vertices above the terrain. Is there any way to essentially drop each vertex individually to where it hits the terrain? I need each vertex to hit the terrain, where I will in turn place proxies at each vertex. I have done a similar thing with the Soulburn script ObjectDropper, but this will only handle objects, not vertices.