What it means
The road passes below a rocky slope. Rocks may already be on the road or could come down, especially after heavy rain.
What to do
Drive carefully and look out for rocks on or beside the road. Don't stop or park below rocky slopes.
How to read warning signs
Warning signs are red-bordered triangles pointing up. They don't order you to do anything: they tell you what's coming so you can slow down and get ready.
More warning signs
On the way to your test? Read how the NTSA test works and how the Model Town Board is used.
