"It was at this moment something across the ravine caught my eye. A bright red light glared between the trees, emanating from the clearing across from us. A circle of fire had been lit on the hillside. A perfect circle of at least 6 foot tall flames"  

"Never Go Into Whiterock Ravine After Dark" was written by Rylee Maleski  

Author’s page: https://www.reddit.com/user/Only_Halfway_Gay---- 

Story: https://www.reddit.com/r/nosleep/comments/sc6g0p/never_go_into_whiterock_ravine_after_dark/