A hotshot BNSF intermodal train cruises through Sugar Creek, MO on its way east on a partly cloudy August 29, 2021.

As night sets in over Kansas City, MO, a BNSF intermodal train heads west through town on August 28, 2021.

On a hot and humid August 23, 2021, three EMD units lead a southbound coal train across the Elk River at Ginger Blue, MO.

Detail of the number boards surrounding the headlight of Big Boy 4014.

In the early hours of the day, a Union Pacific manifest train heads east past Hollenberg, KS on August 9, 2021.

Having just crossed from Nebraska into Kansas, Big Boy number 4014 heads east along the Marysville Subdivision past the community of Hollenberg on a sunny August 9, 2021.

Three KCS units lead a northbound grain train across the Illinois River in Watts, OK on the evening of August 2, 2021.

A northbound empty coal train rolls across the Illinois River bridge in Watts, OK on a hot and humid July 31, 2021.

A northbound manifest train rolls through the middle of Westville, OK on a sunny July 25, 2021.

With just a hint of light left in the sky, a northbound manifest freight train crosses the Illinois River in Watts, OK on a humid July 25, 2021.

Shining in the late afternoon sun, the lead locomotive of a southbound manifest train rolls onto the trestle over Sager Creek in Siloam Springs, AR on a warm July 19, 2021.

A northbound grain train rounds a curve just south of Siloam Springs, AR on a sunny July 19, 2021 morning.

A northbound empty coal train rolls across the Illinois River bridge on the muggy afternoon of July 18, 2021 in Watts, OK.

On a partly cloudy July 18, 2021, an SD70ACe leads a southbound KCS manifest train across a small trestle bridge in Siloam Springs, AR.

A well-worn ES44AC leads a northbound Kansas City Southern grain train at Page, OK on a very warm July 6, 2021.