I need some help figuring out how to model some rocky ground. Basically, I want to model the Ludendorff Bridge and I'm in the process of trying to create the ballast-like area of the train tracks, for example:
You can see a train track situated on the rocky ground I'm trying to create.
How would I go about doing this? I've tried creating individual rocks and then dropping a bunch of them with the Drop To Ground add-on, but it doesn't really give the effect I'm going for.