Field guide No. 883

A small locomotive sits inside a complete circular railway loop in a pale quarry. The route has no obvious first stop.

Locomotive inside a giant railway loop

The railway takes the long way round

A small locomotive sits inside a complete circular railway loop in a pale quarry. The route has no obvious first stop.

Field noteA locomotive sits on a circular track inside a quarry. It needs speed to stay on the loop.

Specimen
No. 883
Kind
Possible (the golden mountain kind)
Breaks
Physics
Where it doesn’t exist
A pale stone quarry.
Nearest existing relative
A steam locomotive.
Filed in Fresh slop as
Spaces

Also possible, also breaking physics