When we used to go visit my aunt and uncle in Denver Harbor we would pass through an area that my family called "El Crisol". I also had family that lived off of Liberty road, so it is possible we were going to visit them, I just can't say for sure. I remember the area had a funny smell, someone said it was creosote. I remember passing by some railroad tracks. I wish I could be more specific, but I was only 5 or 6. Could this be the "El Crisol" you are remembering? If so, start doing a backwards flip!