I bought this new text book of walking history and it taught my students to mix water and concrete

The soil is weightless,
yet the trees form concrete walls,
a quiet liminality exposed,
past bleeds into present
clean air and the rumble of the automobile,

Thundering silence
and we shouldn't be here,
though we need to be;

understand or forget.
to ignore, and crucify
the steady beat of identity,
fragile and benign,

clouds heavy with rain
beating down,
a memorial hastily constructed,
following the bend and curve of road and river;

the discourse of commercial markets pursued, 
a discipline of asphalt and ignorance,
governments and private wealth,
a history of interstate highways,
walmarts, shopping malls, and
supermarkets to worship
and write about in circular ads.
the new history,
the new past,
heroes and gods
barely perceptible
a new identity dissolves.