CartoLegend — RC1 to RC8 in pictures

Six real maps · input beside result

Pictures on the left. Saved data on the right.

Example 1 · Black Crystal

A printed dot becomes a data record

Six drill-hole entries were saved. Green marks the 2011 dot.

Black Crystal legend crop with the saved 2011 drill-hole box highlighted — **INPUT + SAVED BOX** · Black Crystal drill-hole legend.

Saved record · entry 6 of 6

labelDiamond drill hole (2011)

typepoint

box[194, 412, 205, 425]

Box center: 3.16 px from the reviewed center.

Example 2 · Black Canyon

A real miss, shown plainly

Three bedding symbols were printed. None matched.

Black Canyon legend row with one wrong saved box in red and three reviewed bedding symbols in green — **RED** · saved row. **GREEN** · Inclined, Overturned and Horizontal.

Saved record · only returned row

labelstrike

typepoint

box[10, 41, 86, 67]

CHECK · 0 of 3 matched. Inclined was mislabeled; two symbols were missed.

Example 3 · Hughes, Alaska

Map colors become editable polygons

Original scan on the left. Saved overlay on the right.

Original scanned Hughes geologic map sheet — **INPUT** · original public USGS scan.

Saved polygon overlay on the Hughes map — **SAVED OVERLAY** · bright = assigned; dark = unassigned.

50map-unit labels used

1,329editable shapes

41areas labeled al

1,217outline points for al

Example 4 · Frederick, Maryland

One scan becomes 1,042 GIS features

The right image is the saved overlay, not ground truth.

Public Frederick geologic map scan — **INPUT** · 10,250 × 14,537 source pixels.

Saved Frederick polygon overlay — **SAVED OVERLAY** · bright = assigned; dark = unassigned.

2,743polygon contours

267unit codes

48.78%map pixels assigned

1,042delivered map-unit features

Example 5 · Needles, California/Arizona

An evaluated success case

The score belongs to the exact overlay pictured below.

Public Needles geologic map scan — **INPUT** · 11,100 × 8,850 source pixels.

Evaluated Needles polygon overlay — **SAVED OVERLAY** · same-stage result used for the score.

716polygon contours

33 / 34unit codes present

78.63%map pixels assigned

66.08%pixel F1

Example 6 · Kechumstuk, Alaska

A printed tick becomes a map coordinate

The printed 64°15′ mark is saved as 64.25° N.

Raw Kechumstuk evidence crop showing the 64 degrees 15 minutes latitude tick — **RAW EVIDENCE** · printed `64°15′` border tick.

Printed64°15′

Saved64.25° N · 9 border marks

Whole sheet

63.997–64.257° N143.387–142.696° W

Two pictures for every RC

RC1 → RC8

Every picture is a real saved input or overlay. Red means rejected.

released / currentresearch / gaterejected

RC1

Read point symbols from a legend

prototype

WHATBlack Crystal: six drill-hole rows saved as JSON.

WHYSimple rows worked; changed layouts broke them.

FIRST PROOF · no safe headline score

Black Crystal raw legend crop — **Black Crystal** · raw legend crop.

Snow Shoe raw legend crop — **Snow Shoe** · a different, harder layout.

RC2

Recover rows missed on the full legend

packaged

WHATCrop a missed symbol row and try that row again.

WHY159 of 167 known rows were recovered.

159 / 167 rows recovered across six splits

Strawberry Butte point-symbol input row — **INPUT · Strawberry Butte** · symbol row.

Peach Springs point-symbol input row — **INPUT · Peach Springs** · symbol row.

RC3

Try maps from completely new sources

source test

WHATBettles and House Rock were outside the training sources.

WHYOnly 2 more of 106 target symbols were found.

BLIND-1 · 39 → 41 / 106 matches

Bettles new-source legend crop — **INPUT · Bettles** · new source layout.

House Rock new-source legend crop — **INPUT · House Rock** · second source layout.

RC4

Save each mark with its printed label

released

WHATLabel + point type + pixel box.

WHYReleased, with real successes and real misses.

BLIND-1 · 58/106 · P .563 | BLIND-2 · 45/100 · P .584

RC4 adapter + results ↗Full-sheet files + run guide ↗

Black Canyon point-symbol input crop — **INPUT · Black Canyon** · three printed bedding symbols.

Howard Pass point-symbol input crop — **INPUT · Howard Pass** · two printed deposit symbols.

RC5

New training made new-map results worse

5.1–5.3 rejected

WHATBlind-1 fell 58 → 50; Blind-2 fell 45 → 34.

WHYRejected. RC4 stayed public.

50/106 · 34/100 · 55/145 | NOT SHIPPED

Crown Point RC5 blind point-symbol example — **Crown Point** · real blind point-symbol example.

Bartlett RC5 hard-negative swatch example — **Bartlett** · hard-negative swatch that helped reject RC5.

RC6

Clean fake sheets did not transfer

mixed result

WHATClean and degraded synthetic symbol sheets.

WHYThe synthetic version was rejected; RC4-Modern still improved.

RC4-MODERN · 52 → 77 / 167 · 0 empty-map false positives

Clean synthetic RC6 geology symbol sheet — **Clean synthetic sheet** · plausible training input.

Degraded synthetic RC6 geology symbol sheet — **Degraded synthetic sheet** · transfer still failed.

RC7

Trace whole-map colored regions

area tracing

WHATHughes: 1,329 editable shapes across 50 labels.

WHYWhole geologic regions could now open in GIS.

347 TARGETS · R .8415 · P .7087 · IoU .172

Hughes saved polygon overlay — **OUTPUT · Hughes** · every bright shape has an assigned label.

New Mexico Volcanoes saved polygon overlay — **OUTPUT · Volcanoes** · a different map layout.

RC8

Export polygons with labels and coordinates

GIS delivery

WHATFrederick: 1,042 features. Needles: 591.

WHY12 GeoJSON files + 12 matching GeoPackages.

R .8732 · P .7426 · IoU .421 | 8,734 polygons

Download all 24 GIS files ↗USGS source list ↗

Frederick saved map-unit overlay — **OUTPUT · Frederick** · saved map-unit shapes.

Kechumstuk printed latitude tick crop — **INPUT · Kechumstuk** · printed 64°15′ border mark.

Measured, not illustrated

Five charts

Counts stay attached to their own frozen test. Rejected work is red.

Point symbols found on new-source maps

Targets found; each bar shows its own denominator.

Blind-1 · 106 targets

RC239

RC341

RC458

RC550

Blind-2 · 100 targets

RC323

RC445

RC534

RC8 colored-region score

10 sheets · 347 target regions.

Recall87%

Precision74%

IoU42%

Same maps: RC7 vs RC8

Same 10 sheets and 347 targets.

Recall

Precision

IoU

RC7RC8

What each delivered polygon contains

8,734 polygons · 12 public sheets.

Codes100%

Names76.1%

Descriptions39.4%

Strict form31.2%

Same 99 labels read three times

Divergent units in three 5-pass blocks · 99 units.

Block A5

Block B7

Block C2

Union11

All three0

Read before comparing

Limits

Show the limits

RC4 bars use their named new-source tests. RC7/RC8 use 10 public maps and 347 target regions. A filled field can be wrong. Repeated answers can be wrong. Colored overlays are saved outputs, not ground truth.