Louis Tikas, born Elias Anastasios Spantidakis, was the main labor union organizer at the Ludlow camp during the 14-month strike known as the Colorado Coalfield War in southern Colorado, between September 1913 and December 1914; described as "the bloodiest civil insurrection in American history since the Civil War". He was shot and killed during the Ludlow Massacre, the bloodiest event of the strike, on 20 April, 1914.

Ludlow is a ghost town in Las Animas County, Colorado, United States. It was the site of the Ludlow Massacre–part of the Colorado Coalfield War–in 1914. The town site is located at the entrance to a canyon in the foothills of the Sangre de Cristo Mountains. It is located along the western side of Interstate 25 approximately 12 miles (19 km) north of the town of Trinidad. Nearby points of interest include the Ludlow Monument, a monument to the coal miners and their families who were killed in the 1914 massacre, the Hastings coke ovens, and the Victor American Hastings Mine Disaster Monument.