MALABAR COAST · KERALA, INDIA
Kozhikode & northern KeralaEXTENT, DATES & GAPS
The coast as a connected record.
Northern Kerala, from Kasaragod to Ponnani. Compare the coverage of each period before interpreting change.
One layer can contain many map sheets
The original three 1909 images were adjoining Survey of India sheets, not three districts. The expanded survey layer now brings the available coastal sheets together with one checkbox, transparency slider and swipe control. Sheet outlines and the source details preserve their individual dates.
“1909-era” is a mixed-date collection. It includes nearby editions from 1910–1914 to extend coverage. The separate 1909-only layer shows just the verified 1909 sheets; it cannot provide the whole coast. A 1913 base surviving as a 1947 impression is explicitly labelled.
This is a research extent, not a reconstructed administrative boundary. Kasaragod was in South Kanara in these surveys; its inclusion follows the modern northern Kerala coast. A blank area outside a sheet means no coverage in this layer, not an uninhabited landscape.
| Period / layer | Geographic coverage | What it can show — and its limits | Explore |
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Earlier regional maps
Early maps in the collection already depict the wider Malabar coast. Their original Calicut labels are marked in a separate viewer. They remain image-based comparisons because pictorial and early regional geography cannot safely be treated as modern street coordinates.
Detailed nineteenth-century coverage and individual wartime survey years remain uneven. The available charts and surveys below are shown at their actual extent; missing periods are not filled with a differently dated map.
THE MAP ROOM
Many names. One coastline.
A source-linked collection of city views, coastal charts, survey sheets and archival leads.
CALICUT ON THE WIDER MAP
A place in a larger world.
Early world and regional maps with Calicut’s printed name marked for you. These show how the city was located and named, rather than its streets.
The orange ring points to the original printed name. It is an editorial guide on the image, not a geographic control point. Scroll or pinch to zoom; drag to explore.
Looking for nineteenth-century city plans
The recovered 1833 Indian Atlas sheet 44 shows Calicut, Elathur and Beypore on a regional coastal survey. A newly added 1854 Malabar district atlas map also marks Calicut, Ellatur and Beypoor. The collection includes 1801 and 1809 regional maps, 1880s harbour charts, French-property plans and Basel archive leads. A verified 1800–1850 whole-city street plan was not located in this search.
THE LATER COAST
Malabar in the ’70s and ’80s.
Explore the coast directly in the overlay tool with 1981 and 1983 regional charts and satellite-based built-up estimates for 1975 and 1985. Coverage and dates differ; the Census maps remain available below.
Compare the coast’s built-up area
The 1975 and 1985 layers estimate how much of each 100-metre cell is covered by buildings. The 1975 epoch uses historical satellite imagery with possible modelled gap filling; 1985 is interpolated. Both come from the European Commission’s 2023 GHSL release. They are reconstructions, not photographs or maps published in those years.
A shared colour scale keeps the comparison consistent. The modern background supplies today’s street names. The model assumes built-up area does not decrease over time. Differences are modelled growth, not independent observations or evidence of an individual building’s construction date.
Census maps at the source
Open access at the official source. The buttons open the original Census PDFs at the relevant page. If your PDF viewer ignores the page link, use the page number shown. These maps are linked rather than copied into the overlay viewer: the Census portal’s copyright policy requires reproduction permission.
1971 corporation maps are explicitly notional. The 1981 maps are administrative, at district or taluk scale. None is presented here as a surveyed street map or an accurately aligned overlay.
IMAGE COMPARISON
Look closely. Compare carefully.
Compare any two available scans. Images are fitted to the same frame, not geographically aligned.
Drag an image to pan. In overlay mode, Image B is draggable. Adjustments here are visual only; they do not change the geographic layers. Original scans and their credits are linked below.
A PROJECT OF THE CHHIT
About this atlas.
Kozhikode & the Malabar Coast
This atlas is part of The Chhit · thechhit.com, a blog by Ananth Krishna.
A lawyer and commentator, Ananth writes about Kerala, constitutional and legal questions, politics, culture and history. The atlas extends that interest in Kerala’s history into a public collection of maps, bringing together city views, coastal charts and surveys to explore Kozhikode and the wider Malabar coast over time.
Browse the original sources, select maps to overlay, or compare how Calicut appears in earlier cartography. Each record retains its dates, credits and known limitations.
How to read this atlas
Identifying the same city
The Kozhikode district administration explicitly connects Kozhikode with English Calicut, Tamil Kallikkottai, Arabic Qāliqūṭ, and Chinese Kalifo. Historical map titles also use forms such as Calechut, Calecut, Calicuth and Calicout. These are search variants, not proof on their own: records were checked against the Malabar coast, nearby Beypore/Beipur, and archive subject descriptions. District administration source ↗
Calicut is not Calcutta (Kolkata). A map of Malabar, a Calicut taluk, a mission compound or the wider kingdom is not necessarily a city plan. Each record identifies its type and coverage. No standalone historical map titled Kallikkottai or Kalifo was verified in this search.
What is included—and what remains open
This is a documented public-web collection, not a claim to contain every surviving map. It covers selected early city views and regional charts, nineteenth-century coastal mapping, detailed twentieth-century surveys, and specific catalogue records whose scans are unavailable here. Modern reconstructions are not presented as contemporary historical maps. Reprints and derivative city views are labelled so they do not become false evidence of urban change.
Searches covered Wikimedia Commons and its underlying institutional records, BnF/Gallica, the Hebrew University Historic Cities project, the Nationaal Archief/Atlas of Mutual Heritage, David Rumsey, the British Library, Basel Mission Archives, the Tamil Digital Library, Census of India, the University of Texas map collection and the Old Survey of India Maps collection on Zenodo. Unverified search hits are not counted as maps. Catalogue-only items are counted separately from scans.
Ocean display controls
Full sheet preserves the sea, soundings and annotations printed on each historical map. Land only clips overlays at a generalized modern shoreline from Natural Earth (1:10 million scale); it is a viewing aid, not a reconstruction of the historical coast. Use Full sheet when studying shoreline change. Ocean background colours are visual styles and do not indicate water depth. The coastline source and limits are recorded below.
How the geographic layers were prepared
The 1909-era coastal layer groups adjoining Survey of India sheets instead of treating them as separate regions. Publication dates range from 1909 to 1914; a later impression of a 1913 base is labelled. Full sheet records retain survey dates, printing notes, source links and registration information. The 1909-only layer deliberately leaves other years uncovered. Turn on Sheet outlines to inspect the joins and hover for each sheet’s date.
Printed latitude/longitude intersections were used to register survey sheets. The 1889 Admiralty chart is expanded to Mount Dilli / Ezhimala; adjoining northern and southern Admiralty charts are dated 1914 and can be loaded together as a mixed-date coastal layer. Their archive filenames retain first-publication dates from the 1850s, so the printed edition dates take precedence. Three AMS sheets now form a continuous regional layer: Calicut and Coimbatore printed in 1959, and Mangalore printed in 1962, all compiled in 1954 from older sources. Broader 1981 and 1983 chart crops use their printed graticules. The Coverage by period view describes the limits of each period. Kasaragod is included as part of modern northern Kerala, although its historical sheets were catalogued under South Kanara.
Alignment is approximate. These are approximate graticule registrations for visual exploration. Historical datum differences, projection differences, survey errors and paper deformation have not been fully corrected. No independent ground-control accuracy or RMS error has been established. A mismatch does not by itself prove a changed coastline or moved road. The arrow and scale controls let you experiment; Reset returns the original alignment. Do not use these layers for measurement, boundaries or navigation.
The 1970s and 1980s overlay layers
1983 DMA chart: the Tactical Pilotage Chart K-8D was compiled in January 1983, with air information current through 22 January 1983. The scanned copy is a September 1997 reprint. It is a regional aeronautical chart at 1:500,000, not a city street plan. The expanded northern Kerala crop is aligned from its printed graticule; the complete sheet retains the date and projection information. This chart does not reach Kasaragod. The 1981 ONC chart supplies broader regional coverage, at a different scale and date.
1975 and 1985 built-up reconstructions: these use GHS-BUILT-S R2023A, from the European Commission, Joint Research Centre. Source cells are 100 × 100 metres in an equal-area projection; their values are estimated built-up square metres. The display uses the same percentage classes for both years. Crops are reprojected to the modern map using nearest-neighbour resampling, preserving the classes. Zero and NoData are transparent. The wider crop has 470,313 NoData display pixels per epoch; missing values must not be read as absence of buildings. Each record links to geospatial data and a separate NoData mask.
The GHSL five-year series uses spatial-temporal modelling. The 1975 epoch is supported by Landsat collections, with possible gap filling; local observation counts were not checked. The 1985 epoch is interpolated between observation-supported periods. The model constrains built-up surface to be nondecreasing, so differences are not independent observations of change. These are modelled historical estimates produced decades later, not exact-date satellite photographs, cadastral boundaries or contemporary street maps. JRC methodology ↗. Reuse is allowed with attribution under CC BY 4.0. Cropping, reprojection and colour styling are modifications made for this atlas.
Reading dates and repeated imagery
Publication, survey and revision dates describe different things. The Admiralty 747 copy was first published in 1859 and carries major corrections to 1889. The AMS sheet was printed in April 1959, compiled in 1954, and uses sources of several earlier dates. The 1572 Braun–Hogenberg view and related later images belong to a reused pictorial tradition; they are not independent street surveys.
Useful comparisons
- 1909-era combined coast: follow towns, railways and waterways across adjoining sheets; inspect the dates at each join.
- 1909-only + 1946: use transparency, swipe or blink to investigate differences in the mapped roads and settlements. Check the full-sheet legends before interpreting symbols.
- 1888 chart + early city views: use image comparison to study how the port was represented; the views and chart have different purposes and geometry.
Images, credits and rights
The header uses the Kozhikode Corporation emblem displayed on the Corporation’s official website.
Every record links to its source and states its available rights information. Wikimedia-hosted historic scans use the public-domain status recorded on the file pages. Survey scans are credited to the Survey of India and the John Brown Zenodo collection, whose record specifies CC BY 4.0; overlay crops and rectification are modifications. Basel Mission images are linked as archive records rather than redistributed or altered here. Census maps are linked to exact official PDF pages because the portal requires reproduction permission. The 1908 Beypur port plan is also linked to its publicly viewable full scan. Open access to this atlas does not make all source images openly licensed. Other catalogue records also require the holding archive’s terms to be checked before reuse.
The modern background is © OpenStreetMap contributors. Modern place markers are approximate orientation aids, not historical control points or ward centroids. East Hill is placed near the Pazhassi Raja Museum (approximately 11.2925, 75.7781); West Hill is placed near the hill (approximately 11.2907, 75.7694; GeoNames-derived reference). The modern map needs an internet connection; hosted historical scans are bundled with this Site.
Research trail
Compiled 15 November 2026. The downloadable catalogue records source links, dates, authors, scope, rights and alignment status. Download full metadata and alignment coordinates · JSON.