— The data behind the archive

Every line is
a measurement.

No generation. No approximation. Every contour in the Archive is traced from measured public-domain elevation and bathymetric data — USGS 3DEP for Earth, NASA MOLA and LRO for Mars and the Moon, and NOAA/GEBCO for the oceans — extracted in QGIS, cleaned by hand in Illustrator, and verified against the source. No AI generation at any stage.

— How verification works

The short
answer.

Each Archive Entry has its own record. The product page surfaces the parts of that record that are ready. The Data page is where you can read it in full once verification is enabled.

01Find

Find the Archive ID on the product

Archive IDs appear on product pages and provenance cards. The format is HE-[WORLD]-[ENTRYNO]-[SLUG].

02Enter

Enter it in the lookup

Type the Archive ID into the lookup above.

03Read

Read the record

The record describes the terrain, the source dataset, the method, and any notice that applies. Fields populate as data is published.

04Cross-check

Cross-check against the product

Where a product page surfaces a field (for example contour interval), the Data record should agree. If they ever disagree, the Data record is authoritative.

— Verify

Check an
Archive ID.

Every product has an Archive ID printed on the packaging and shown on its product page. Enter it here to confirm its provenance.

Enter an Archive ID exactly as printed — for example HE-EA-26-001-HDM.

— What a record contains

The shape of a
verification record.

Each verification record can carry these fields. The set of fields that populate depends on the terrain, the source dataset, and the format. A real record is shown on the product page or in the lookup once published.

Field Value Notes
Archive ID When verification is published Format HE-[WORLD]-[ENTRYNO]-[SLUG]. World codes EA, DP, SP.
Terrain Where available The name of the place behind the Archive Entry.
World EA / DP / SP One of the three locked world codes.
Subworld Where applicable An optional subdivision under a world (for example a planetary body inside Space).
Source dataset When configured The source of the underlying terrain data. Specific providers appear when published.
Dataset version When configured Identifies which version of the source data was used.
Method Where available How the data was extracted, interpreted, and edited.
Contour interval Varies by terrain The vertical step between adjacent contour lines. Only present where the visual system uses contours.
Verification status Where available Whether the record is verified, pending, or not yet published.
Last updated When available Date of the most recent change to the record.
Notices Where required Dataset-specific notices (for example, not for navigation) appear only where the source requires them.
Related products Where configured Tee, print, Complete Edition, Premiere, or Master Set links tied to this Archive Entry.
Per-plate records (Master Sets) Where applicable When a Master Set includes multiple terrains, each plate may carry its own Archive Entry. Set-level identifiers exist only when explicitly modeled.

The table above describes the fields a record can contain. Enter an Archive ID above to see a real one.

— Sources

Three datasets.
Three worlds.

Earth
USGS 3DEP

The 3D Elevation Program is the authoritative elevation dataset for the United States. Derived from lidar and photogrammetry, it covers the contiguous US, Alaska, Hawaii, and US territories.

Resolution: 10 m (1/3 arc-second)Coverage: contiguous US + AK + HIFormat: GeoTIFF DEMLicense: public domain (USGS)
Deep
NOAA + GEBCO

NOAA Coastal Relief Model for US waters, and GEBCO (General Bathymetric Chart of the Oceans) for global ocean and lake depths. Sonar-derived bathymetry at the highest available resolution per region.

Resolution: 3 arc-second (~90 m) coastal · 500 m globalCoverage: global oceans + US coastalFormat: NetCDF / GeoTIFFLicense: public domain (NOAA/GEBCO)
Space
NASA MOLA + LRO

Mars Orbiter Laser Altimeter for Martian terrain, and Lunar Reconnaissance Orbiter for the Moon. The same datasets used by planetary scientists and mission planners.

Resolution: 463 m (Mars) · 118 m (Moon)Coverage: full planetaryFormat: PDS / GeoTIFFLicense: public domain (NASA)
— The process

From raw data
to your wall.

01
Extract

Raw elevation data is loaded into QGIS. The terrain is isolated, the contour interval is chosen based on the feature's vertical range, and contour lines are generated from the DEM.

Tool: QGIS · GDAL
02
Clean

Contours are exported as SVG and opened in Illustrator. Every line is inspected: artifacts removed, index contours verified (every 5th interval), and the composition is set for the chosen template (V or S).

Tool: Adobe Illustrator
03
Verify

The finished contour set is cross-referenced against the source dataset. Elevation values are spot-checked. The Trophy Stat is verified against published records. The Archive ID is assigned.

Tool: QGIS + manual
04
Print

The verified file is printed on 250gsm archival paper — matte, uncoated, acid-free, and FSC-certified — a museum-quality stock designed to resist yellowing and last for generations.

Output: 250gsm archival print
— Methods

What the
method record covers.

The method record describes how a terrain was read, what was kept, what was suppressed, and where the result was checked. Specifics live in the per-terrain record once published.

Extraction

How the data was read

Source terrain data is extracted into a working representation before any visual decisions are made. The extraction step describes the operation, not the source provider.

Editing

What was kept and what was suppressed

Editing decisions are human. What stays, what goes, and how the place is framed are choices a person makes for that terrain.

License

How the source data is used

The license field describes how the source data may be used and credited. Specifics appear in the per-terrain record.

AI use

Where AI is and is not used

Generative imagery is not used to invent terrain. Where operational tools are used elsewhere (for example, copy or QA), the record states what they are used for.

Verification

Cross-check and sign-off

Verification covers cross-checking the extracted record against the source and confirming the editorial decisions. Status fields surface this for each Archive Entry.

Issue

Open issues

Where a known issue exists with a specific record — for example, an upstream dataset correction — the record carries an issue note.

Provenance

Link back to the record

The provenance link surfaces the full record for that Archive Entry from the product page. The Data page is the destination of that link.

— Notices

Where notices
apply.

A verification record may include notices that apply to that specific terrain or dataset. Notices appear with the record, not universally across the catalog.

Not for navigation

Horizon Editions objects are editorial, not navigation tools.

Where a source dataset requires a specific not-for-navigation notice, that notice appears with the verification record for that terrain. The page-level work is editorial.

Source license

License terms that apply to the source data

When a source dataset has license or attribution terms, those terms appear with the record. Specifics live in the per-terrain field.

Attribution

How the source is credited

Where attribution is required by the source, the record carries the attribution text. The Data page does not assert a universal attribution string for the catalog.

Correction

When upstream data is corrected

If a source dataset is later corrected, the affected records may carry an issue note describing the correction and its effect on the Archive Entry.

— Why not AI

Manual cartography
is the product.

Generative models can produce images that look like topographic maps. They cannot produce images that are topographic maps. The difference matters: a contour line either represents a measured elevation or it doesn't. There is no middle ground.

Every entry in the Archive is traceable to a specific dataset, at a specific resolution, processed through a documented pipeline. If you know the peak, you can verify the contours against the same public data we used. That is the product — not the aesthetic, but the accuracy.

We don't use generative models, style transfer, AI autocomplete, or automated contour simplification at any stage. A human chooses the interval. A human cleans the lines. A human checks the result.

No generative terrain · Documented process · Verifiable against source