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Card 898 of 9932026-09-20 issue

Observed arrival · 2026-09-20

The Erosion Line

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Editorial interest 82/100 Selection signal · not a rating of the site

A field record tracking one cliff’s annual retreat, storm-driven failures, and changing sections of the face.

Landing page captured for the 2026-09-20 issue.
For
Readers tracking one unstable cliff over time
Worth noticing
The record reports 11.9 metres of cumulative retreat, with 4.1 metres lost during the 2023 spike.

Field notes

The record separates gradual movement from episodic collapse: a quiet year may approach zero, while a saturated winter can produce a metre-scale step. Four fixed rebar markers support repeat observations, including a vertical active face, an overhang expected to fail within two seasons, and a slower boulder-clay slope. The page attributes the main failure plane to water gathering where low-permeability clay meets weaker laminated silts.

Observed signals

Read the marks

Editorial observations of this landing page, not a rating.

OpenPublic substance visible
PrettyNotable craft visible
ProPolished or operationally mature
NicheUnusually specific use

One card from the complete issue

Mahjongg With Footnotes

304,744 arrived 1,000 judged 993 catalogued Enter the complete issue
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Landing page observed 2026-09-20. The live site may have changed.