Monte de Estépar II, Burgos (2016). Stones placed at grave sites help families honour missing loved ones, murdered between August and October 1936. Many have been buried under the excavations necessary for construction of the high-speed train tracks and the A-62 highway.Tresviso II (La Mesa), Cantabria (2016). Avelino Fernández Bravo, a 29-year-old lieutenant in Battalion 257 of the Army of the North, was heading home when he was murdered and buried somewhere near the plateau in November 1937.