The story of
Ravenser Odd
Ravenser Odd was a short-lived island in the mouth of the River Humber. It rose from the sea in the early 13th century and had sunk beneath the waves by 1360.
Series
Ordnance Survey: Trigonometrical and Levelling Divisions: Levelling Maps and Diagrams
Catalogue reference: OS 57
What's it about?
OS 57
Records from the Primary, Second and Third Levelling of Great Britain by the Ordnance Survey. These are the levelling route maps, the primary means of reference to the levelling abstracts (OS 54). They are one-inch OS maps and extracts from the...
Full description and record details
-
Reference (The unique identifier to the record described, used to order and refer to it)
-
OS 57
-
Title (The name of the record)
- Ordnance Survey: Trigonometrical and Levelling Divisions: Levelling Maps and Diagrams
-
Date (When the record was created)
-
1951-1993
-
Description (What the record is about)
-
Records from the Primary, Second and Third Levelling of Great Britain by the Ordnance Survey.
These are the levelling route maps, the primary means of reference to the levelling abstracts (OS 54). They are one-inch OS maps and extracts from the six-inch OS series annotated to show the alignment of levelling lines relating to the Primary and Second Geodetic Levelling prior to 1952. The six-inch extracts cover the urban areas which are indicated on the one-inch maps by simple boxed outlines.
Also included in the series are master diagrams of levelling blocks (polygons) showing additional levelling detail and renumbering of existing levelling lines for the Third Geodetic Levelling of 1951-1956. The diagrams cover both scales but do not include the base map detail since they were intended as overlays to the original one-inch and six-inch maps.
The series also includes two sets of bound volumes containing the levelling progress and adjustment maps. These are county maps providing an index to the A and M abstract series (OS 54) and showing the progress of the levelling in Great Britain from the 1950s to 1988, or recording the adjustments made between the Liverpool and Newlyn datum levelling for the whole of Great Britain.
-
Related material (A cross-reference to other related records)
-
See also OS 54
-
Held by (Who holds the record)
- The National Archives, Kew
-
Legal status (A note as to whether the record being described is a Public Record or not)
-
Public Record(s)
-
Language (The language of the record)
-
English
-
Creator(s) (The creator of the record)
-
- Ordnance Survey of Great Britain, Directorate of Field Survey, 1946-1973
- Ordnance Survey of Great Britain, Field Surveys Directorate, 1974-1978
- Ordnance Survey of Great Britain, Surveys and Production Directorate, 1979-1993
-
Physical description (The amount and form of the record)
-
848 flat sheets and volumes
-
Access conditions (Information on conditions that restrict or affect access to the record)
-
Open
-
Immediate source of acquisition (When and where the record was acquired from)
-
From 2007 Ordnance Survey
-
Subjects (Categories and themes found in our collection (our subject list is under development, and some records may have no subjects or fewer than expected))
-
- Topics
- Maps and plans
-
Accruals (Indicates whether the archive expects to receive further records in future)
-
Series is accruing
-
Record URL
- https://beta.nationalarchives.gov.uk/catalogue/id/C16181/
Catalogue hierarchy
Over 27 million records
This record is held at The National Archives, Kew
278,790 records
Within the department: OS
Records of the Ordnance Survey of Great Britain
You are currently looking at the series: OS 57
Ordnance Survey: Trigonometrical and Levelling Divisions: Levelling Maps and Diagrams
You may be interested in
Related records
Records that share similar topics with this record.