. In the USA we contain fires and let them burn out if nobody is at risk inside , in Mexico they go to the heart of the fire and put it out, machismo at work for sure. In this shot as they are advancing on one “hot spot” a fireman points at another that had just burst into flames.
Early 70’s in Mexico City, Mexico. Nikkormat camera with I think a 50 mm lens and Tri-X film.
Things you do when you are young and indestuctable. :)