Massive crowds fill the streets Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet. The annual event celebrates Halloween with a variety of activities across two days, from pumpkin carving and haunted houses, to a masquerade recital, scarecrow contest, costume climb, pet costume parade, High Tech Halloween at the Bradbury Science Museum and much more. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com
Scene from 2019 Trick or Treat on Main Street Friday in downtown Los Alamos for the 2019 Trick or Treat on MainStreet event. Photo by John McHale/ladailypost.com