Census boundary evidence
Grassy Lake vl (T10 R13 MW4) — 1911 census geography (AB)
This page identifies a census boundary representation. Source-table records below retain their own reporting-unit identity and geographic qualifications.
- Map snapshot identifier
- AB004015_1911
- Source boundary identifier
- AB004015
- Census vintage
- 1911
- Source label
- Grassy Lake vl (T10 R13 MW4)
- Province code
- AB
- District label
- Medicine Hat
- Level
- csd
- Representation class
- E93_Presence
Census continuity group: Grassy Lake vl (T10 R13 MW4)
TCP UID: AB004015
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.
- Grassy Lake vl (T10 R13 MW4) — 1911 · 1911_V1T1, row 1238 unique_contextual_name_candidate
- Grassy Lake vl (T10 R13 MW4) — 1911 · 1911_V2T2, row 89 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 |
|---|---|---|---|---|---|
| Grassy Lake · 1901 | 1901 → 1911 | 2614291.4081251477 | 0.0006252677828018048 | 1.0 | LATER_WITHIN_EARLIERHistorical succession verified: False |
| 65. Eureka · 1921 | 1911 → 1921 | 0.05201969296534566 | 1.9898199873078358e-08 | 4.143352822314223e-11 | PARTIAL_OVERLAPHistorical succession verified: False |
| Grassy Lake, VL · 1921 | 1911 → 1921 | 2614291.356105441 | 0.9999999801017949 | 0.9999999109362154 | APPROXIMATELY_EQUAL_EXTENTHistorical succession verified: False |
Continuity assessments
- Grassy Lake vl (T10 R13 MW4) (1911) → Grassy Lake, VL (1921): name_change_requires_review