This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
Deepfreeze b. The first piece of equipment onloaded from the USS Arneb AKA at Little America caterpillar tractor with low ground pressure treads Report of Operation DEEPFREEZE Navy Task Force Washington pp United States Navy Original work of the US Federal Government public domain PDUSGov Operation Deep Freeze USS Arneb AKA Caterpillar