The Race to Utah! An interactive map depicting the Transcontinental Railroad's route from Sacramento to Promontory Point, Utah. This activity is a bit advanced and would be best for gifted students or those with computer experience.
Timeline of the Transcontinental Railroad A very detailed timeline of the building of the railroad. Includes other current events (Lincoln's assassination etc.) to put the railroad in a historical context.
Literature Learning Ladders: Dragon's Gate This is a great Read-Aloud book about the Chinese contribution to the building of the Transcontinental Railroad. It could be read over a week or so a chapter at a time.
The El Paso County Courthouse Mural This is a section of the colorful and detailed mural found at the country courthouse in El Paso, Texas. This section memorializes the Chinese who worked on the railroad.