Alamosa in Alamosa County, Colorado — The American Mountains (Southwest)
Los Seis de Boulder
Photographed by Cosmos Mariner, July 11, 2025
1. Los Seis de Boulder Marker
[northwest face of memorial]
To challenge social and economic injustice a civil rights movement spread across the USA after World War II. The 1960s and 1970s were prominent years in that struggle. The Chicano Movement became a powerful advocate for the Mexicano people.
Reyes Martνnez was from Alamosa. Reyes participated in El Movimiento as a student and attorney. In May 1974 two car bombings in Boulder, Colorado killed Reyes and five other Chicano activists: Neva Romero, Una Jaakola, Florencio Granado, Heriberto Tιran and Francisco Dougherty. Their deaths were a tragic consequence of the social tension that existed. They are remembered as Los Seis de Boulder.
‘Vivan Los Seis de Boulder!
[southeast face of memorial]
Chicano que Murio por la Causa
Nacio 5 de Marzo 1948
Murio 27 de Mayo 1974
Topics. This historical marker is listed in these topic lists: Civil Rights • Education • Hispanic Americans. A significant historical date for this entry is May 27, 1974.
Location. 37° 27.816′ N, 105° 52.219′ W. Marker is in Alamosa, Colorado, in Alamosa County. It is at the intersection of Ross Avenue and 9th Street, on the right when traveling south on Ross Avenue. The marker is beside the sidewalk at the southeast corner of Zapata Park. Touch for map. Marker is in this post office area: Alamosa CO 81101, United States of America. Touch for directions.
Regionally, this marker is in Colorado’s San Juan Mountains and in the San Luis Valley. It is also in the American Mountain West. Globally, it is in North America, the Rocky Mountains, the Western Hemisphere, the Western World, and the Anglosphere. Historically, it finds itself in what was once New Spain and also the Republic of Texas.
Other nearby markers. At least 8 other markers are within walking distance
this page online
Also see . . .
1. Los Seis de Boulder (Wikipedia).
Excerpt: The bombings occurred at the end of May 1974, with the name Los Seis de Boulder coined posthumously. The students were protesting the negative treatment of Mexican-American students at the University of Colorado (CU) Boulder at the time of their death. Memorials to the bombing victims have been installed on the University of Colorado campus and in Chautauqua Park.(Submitted on March 20, 2026, by Cosmos Mariner of Cape Canaveral, Florida.)
Los Seis were active in the UMAS (United Mexican American Students) at the University of Colorado Boulder. At the time [1967-1979], Colorado was one of fewer than 10 U.S. states in which Chicanos (mid-20thcentury political/cultural term used by some Mexican Americans) were initiating the original MECha groups. As of 2012, there are over 500 chapters. Although these groups originally concentrated more on education issues, this led to participation in political campaigns and protests against widespread issues such as police brutality and the U.S. war in Southeast Asia. Outside of Colorado, the Brown Berets, a Chicano youth group which began in California, took on a more militant and nationalistic ideology. At the University of Colorado Boulder today, UMAS and MEChA have combined into a single coalition simply referred to as "UMAS y MEXA".Photographed by Cosmos Mariner, July 11, 20252. Los Seis de Boulder Memorial
(northwest face of memorial)
2. Unforgetting Los Seis (History Colorado).
Excerpt: On a sleepy summer evening in Boulder, Colorado, in 1974, three young Chicano activists sat in a car at Chautauqua Park at the base of the iconic Flatirons the giant red sandstone rock formations that sit above the foothills. Then, at approximately 9:50 p.m., the car exploded. Two days later, another car in downtown Boulder exploded, killing three more young(Submitted on March 20, 2026, by Cosmos Mariner of Cape Canaveral, Florida.)activists. Their deaths came against the backdrop of the Chicano movement and the social justice activism of the 1960s and 70s. On this episode of Lost Highways, well look back at Los Seis de Boulder the nearly-forgotten group of six activists in the Chicano movement who were fighting for student aid and representation on the CU Campus, and the unresolved mystery of their deathsPhotographed by Cosmos Mariner, July 11, 20253. Reyes P. Martinez Marker
Photographed by Cosmos Mariner, July 11, 2025
4. Reyes P. Martinez Memorial
(southeast face of memorial)
(southeast face of memorial)
Looking northwest; Zapata Park is in the background.
Credits. This page was last revised on August 8, 2026. It was originally submitted on March 20, 2026, by Cosmos Mariner of Cape Canaveral, Florida. This page has been viewed 16 times since then. Photos: 1, 2, 3, 4. submitted on March 20, 2026, by Cosmos Mariner of Cape Canaveral, Florida.
