Field notes

Reading the terrain

Terrain doesn't lie. Notes on how landform decides where water goes — and how to read that before you buy, build or insure.

Stylized aerial view of a river valley with contour lines and a hexagonal grid overlay
Methodology

How terrain decides where water goes

Why terrain — elevation above drainage, slope and upstream catchment — is the most durable signal of flood susceptibility, and how Hexaflood turns it into a score.

September 3, 2026 · 3 min read
A glowing hexagon highlighted among a gradient of green hexagons on a stylized map
Guides

How to read a Hexaflood score

A plain-language guide to the Hexaflood score: the 0–100 scale, the five susceptibility categories, protected vs unprotected readings, and percentiles.

September 3, 2026 · 2 min read
Illustration of a house on a hillside above a river bend, with contour lines in the land
Guides

Buying a home? Read the terrain first

A practical walkthrough for home buyers: how to check the terrain-based flood susceptibility of a property with Hexaflood before you commit.

September 3, 2026 · 2 min read

Hexaflood — terrain-based flood susceptibility, hex by hex.

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