Field guide No. 742

A concrete dam holds back a whole valley of red fallen leaves instead of water, and the overflow pours down the spillway as leaves. The turbines must be very quiet.

The dam of fallen leaves

Reservoir level: autumn.

A concrete dam holds back a whole valley of red fallen leaves instead of water, and the overflow pours down the spillway as leaves. The turbines must be very quiet.

Field noteLeaves pile and drift like a slow liquid. Impounding a valley of them behind concrete is only engineering.

Specimen
No. 742
Kind
Possible (the golden mountain kind)
Where it doesn’t exist
A mountain reservoir in late autumn.
Nearest existing relative
A hydroelectric dam.
Filed in Fresh slop as
Spaces

Also possible, also breaking category