Grand Canyon Railway No. 29 “can pull ____ fully loaded cars up our steepest grades unassisted,” according to informational literature displayed in front of the locomotive as of January 2016.

Find the answer to this question beneath the two photos of GCR No. 29, which are C. 2016 by trainumentary.com.

This 111-year-old locomotive is located just off to the side of the Grand Canyon Railroad’s train station.

Answer: Eight (8) fully loaded cars

Source: See photo below

photos c. 2016 by trainumentary.com