When you see this go around it :-) its not red dirt and no, no one spilled a bottle of cayenne pepper. Dont kick it or touch it if so YOU will turn red lol it's a pile of red angry feisty ants that would love to bite you!!! These are small piles i have seen bigger ones that will go up to your knees. And not just one ant will bit but a bunch of them the smallest little bullies I have seen.
Let me tell you I got bit by ONE and I got goose bumps from the painful sting. And that area was red and swollen. So don't try to be adventurous and watch your step!