Niles Canyon Railway is an all-volunteer organization operating a railway museum running through Niles Canyon, between Pleasanton and the Niles district of Fremont in the East Bay of the San Francisco Bay Area, in California, USA. The railway museum is listed on the National Register of Historic Places as the Niles Canyon Transcontinental Railroad Historic District. NCRY features public excursions with both steam and diesel locomotives along a well-preserved portion of the First Transcontinental Railroad.