Jungle

Field guide No. 371

From above, a green river winds through an orange autumn marsh and ties itself into a single overhand knot, water flowing through the loop. The current takes the long way round.

Knotted river through autumn marsh

The river tied itself up.

From above, a green river winds through an orange autumn marsh and ties itself into a single overhand knot, water flowing through the loop. The current takes the long way round.

Field noteWater in a knot has to cross over itself, flowing above its own surface without a bridge.

Specimen
No. 371
Kind
Impossible (the round square kind)
Breaks
Physics
Where it doesn’t exist
An orange marsh from the air.
Nearest existing relative
An oxbow bend.
Filed in Fresh slop as
Spaces

Also impossible, also breaking physics