For ten days in 1936, Colorado governor Edwin “Big Ed” Johnson declared martial law in the state, which allowed him to close Colorado’s southern border to migrant workers from nearby states and Mexico. Amid record unemployment during the Great Depression…

Colorado, “the Centennial State,” was the thirty-eighth state to enter the Union on August 1, 1876. Its diverse geography encompasses 104,094 square miles of the American West and includes swathes of the Great Plains, southern Rocky Mountains, and the…