masterminer176

Getting back to the topic at hand, while I'm sure that the environmental factors are *quite* important to where the clay spawns, that's not exactly something that's easy to gauge while you're playing most of the time (at least from my experience so far). What I noticed (and how I ended up finding my first patch of clay) is that The Grass is always Sparse on clay blocks, so you can see the clay through it. And the red clay tends to spawn in the Plains(? the flat area with the stone pillars & ponds sometimes) biome. Not sure if OP still needs the help here, but I feel it's good to give my two cents for any future players new to the game such as myself.