I don't know exactly how massive they were. The police told Dominic that there were about 6,000 marchers. It seemed larger than that to me, but I was in the middle of it for most of the time so maybe my perspective was warped. In any case, here's what I saw, crowd-wise, starting with the absolutely packed amphitheater lawn at Volunteer Park...
...from which people marched past the reservoir and out into the streets...
...down Broadway, down Pine, over Interstate 5...
...and toward Westlake Plaza...
...where it was nothing but people, people everywhere: