Census boundary evidence
Spy Hill, VL — 1921 census geography (SK)
This page identifies a census boundary representation. Source-table records below retain their own reporting-unit identity and geographic qualifications.
- Map snapshot identifier
- SK175049_1921
- Source boundary identifier
- SK175049
- Census vintage
- 1921
- Source label
- Spy Hill, VL
- Province code
- SK
- District label
- Division No. 5
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: Spy Hill, VL
TCP UID: SK175049
Census source records
Each link states the assessment that connected the source row to this map. Name candidates remain candidates; no source statistic is silently assigned to the map.
- Spy Hill, VL — 1921 · 1921_V1T16, row 4320 unique_contextual_name_candidate
- Spy Hill — 1921 · 1921_V1T27, row 3853 unique_contextual_name_candidate
- Spy Hill — 1921 · 1921_V1T38, row 3853 unique_contextual_name_candidate
Boundary intersections across censuses
These are computed polygon intersections in the equal-area CRS ESRI:102001. Fractions describe the area of the earlier and later polygons, respectively. They do not establish historical succession, and population has not been apportioned by area. All positive intersections are retained, including very small contributions.
| Other census representation | Years (earlier → later) | Overlap (m²) | Fraction of earlier area | Fraction of later area | Evidence |
|---|---|---|---|---|---|
| 133 townships · 1911 | 1911 → 1921 | 0.3062917998489446 | 2.916840680820685e-11 | 1.1650556985464573e-07 | PARTIAL_OVERLAPHistorical succession verified: False |
| Spyhill vl (T19 R31 MW1) · 1911 | 1911 → 1921 | 2628988.1637966004 | 0.9999998988998187 | 0.9999998834944227 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
Continuity assessments
- Spyhill vl (T19 R31 MW1) (1911) → Spy Hill, VL (1921): name_change_requires_review