{"id":3482,"date":"2025-07-10T12:52:13","date_gmt":"2025-07-10T11:52:13","guid":{"rendered":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/"},"modified":"2025-11-07T14:25:28","modified_gmt":"2025-11-07T14:25:28","slug":"hydrogeological-maps","status":"publish","type":"page","link":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/","title":{"rendered":"Hydrogeological maps"},"content":{"rendered":"\t\t\t<section class=\"hero-section hero-section-with-social\">\n\t\t\t\t\t\t\t\t<div class=\"hero-info-wrap\">\n\t\t\t\t\t<div class=\"container\">\n\t\t\t\t\t\t<div class=\"row\">\n\t\t\t\t\t\t\t<div class=\"col-12\">\n\t\t\t\t\t\t\t\t<div class=\"hero-info\">\n\t\t\t\t\t\t\t\t\t<h1>Hydrogeological maps<\/h1>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\n\t\t\t<div class=\"social-wrap social-wrap-inline-them\">\n\t\t\t\t<div class=\"sea-background-f\">\n\t\t\t\t\t<span>Share this article<\/span><a target=\"_blank\"  href=\"https:\/\/www.facebook.com\/sharer\/sharer.php?u=https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/\"><span class=\"icon-facebook\"><span class=\"hidden\">Facebook<\/span><\/span><\/a><a target=\"_blank\"  href=\"https:\/\/twitter.com\/intent\/tweet?text=Hydrogeological%20maps&#038;url=https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/\"><span class=\"icon-twitter\"><span class=\"hidden\">Twitter<\/span><\/span><\/a><a   onclick=\"javascript:void( (function() {var e=document.createElement('script' );e.setAttribute('type','text\/javascript' );e.setAttribute('charset','UTF-8' );e.setAttribute('src','\/\/assets.pinterest.com\/js\/pinmarklet.js?r='+Math.random()*99999999);document.body.appendChild(e)})());\"  href=\"javascript:void(0);\"><span class=\"icon-pinterest\"><span class=\"hidden\">Pinterest<\/span><\/span><\/a><a target=\"_blank\"  href=\"https:\/\/wa.me?text=https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/\"><span class=\"icon-whatsapp\"><span class=\"hidden\">WhatsApp<\/span><\/span><\/a><a   href=\"mailto:?subject=Hydrogeological%20maps&#038;body=Bringing%20together%20geological%20and%20hydrological%20characteristics%20of%20rocks%20and%20their%20usefulness%20for%20groundwater%20supply.%20(https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/)\"><span class=\"icon-mail\"><span class=\"hidden\">Email<\/span><\/span><\/a><a href=\"#\" data-copy=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/\" class=\"copy-url-on-click\"><span class=\"icon-link\"><span class=\"hidden\">Copy Link<\/span><\/span><\/a><\/div><\/div>\t\t\t\t\t\t\t<\/section>\n\t\t\t\n\n\n<section class=\"wp-block-bgs-blocks-content-container content-section\"><div class=\"container\"><div class=\"row\"><div class=\"col-12\">\n<p>Hydrogeological maps bring basic geological information together with data on the hydraulic and hydrochemical characteristics of the rocks and their usefulness for groundwater supply.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Original records<\/h2>\n\n\n\n<p>Throughout the 1970s and 1980s the major aquifers in the UK were systematically mapped by BGS using data from the&nbsp;<a href=\"https:\/\/www2.bgs.ac.uk\/groundwater\/datainfo\/NWRA.html\">National Well Record Archive<\/a>&nbsp;and overlaying the resulting interpretations of hydrogeological conditions on base maps derived from our geological mapping.<\/p>\n\n\n\n<p>The resulting 23 maps display information on surface water features, the 3D geometry of aquifers, groundwater levels, abstractions and water quality including saline intrusion in varying amounts of detail. They range in scale from 1:625 000 for the national maps of the hydrogeology of England &amp; Wales, and Scotland down to 1:25 000 for some smaller regional maps.<\/p>\n\n\n\n<p>The BGS also hold a limited collection of international hydrogeological maps from all parts of the world.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Digital information<\/h2>\n\n\n\n<p>The original national hydrogeological maps of the UK have been revised using an updated geological base map and are now available in digital form as the&nbsp;<a href=\"https:\/\/www2.bgs.ac.uk\/groundwater\/datainfo\/hydromaps\/hydro_map_625.html\">1:625 000 hydrogeology map of the UK<\/a>.<\/p>\n\n\n\n<p>The original paper hydrogeology maps have been scanned at high resolution and are available through the&nbsp;<a href=\"https:\/\/www2.bgs.ac.uk\/groundwater\/datainfo\/hydromaps\/hydro_maps_scanviewer.html\">hydrogeology map scans<\/a>&nbsp;page.<\/p>\n\n\n\n<p>BGS hydrogeologists are currently revising attributions of&nbsp;<a href=\"https:\/\/www.bgs.ac.uk\/datasets\/bgs-geology-50k-digmapgb\/\">BGS Geology 50k<\/a>&nbsp;geological data at 1:50&nbsp;000 scale; on completion these maps will be made available to licensed users through the BGS website.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Data access<\/h2>\n\n\n\t\t\t<div id=\"wysiwyg-5800-block_c03e5ffc3c47d60a85252aae658fc798\" class=\"  \" >\n\t\t\t<div class=\"col-12 responsive-table\"><table>\n<tbody>\n<tr>\n<th style=\"width: 33.1683%;height: 24px\">Access type<\/th>\n<th style=\"width: 33.1683%;height: 24px\">Dataset<\/th>\n<th style=\"width: 33.1683%;height: 24px\">Information<\/th>\n<\/tr>\n<tr>\n<td>Paper maps<\/td>\n<td>Various hydrogeological maps<\/td>\n<td>Maps published by BGS are available for purchase through the\u00a0<a href=\"http:\/\/shop.bgs.ac.uk\/Bookshop\/\">BGS Bookshop<\/a>.<\/td>\n<\/tr>\n<tr>\n<td>Online access<\/td>\n<td><a href=\"https:\/\/www2.bgs.ac.uk\/groundwater\/datainfo\/hydromaps\/hydro_maps_scanviewer.html\">Scanned maps<\/a><\/td>\n<td>Browse online scans of our printed hydrogeological maps.<\/td>\n<\/tr>\n<tr>\n<td>Online access<\/td>\n<td><a href=\"https:\/\/www.bgs.ac.uk\/geological-data\/opengeoscience\/\">OpenGeoscience<\/a><\/td>\n<td>The new 1:625\u00a0000 hydrogeological map of the UK is now available through our\u00a0<a href=\"https:\/\/www.bgs.ac.uk\/geological-data\/opengeoscience\/\">OpenGeoscience<\/a>\u00a0portal.<\/td>\n<\/tr>\n<tr>\n<td>Online access<\/td>\n<td><a href=\"https:\/\/www.bgs.ac.uk\/map-viewers\/geoindex-onshore\/\">GeoIndex (onshore)<\/a><\/td>\n<td>Map-based browser allowing access to index level data (water wells in the boreholes theme).<\/td>\n<\/tr>\n<tr>\n<td>Licenced datasets<\/td>\n<td>Hydrowebmap<\/td>\n<td>The Hydrowebmap project is producing revised hydrogeological attributions of DigMap geological data at 1:50 000 scale that will in future be available to licensed users.<\/td>\n<\/tr>\n<tr>\n<td>Metadata<\/td>\n<td>BGS Data Catalogue entry<\/td>\n<td><a href=\"https:\/\/metadata.bgs.ac.uk\/geonetwork\/srv\/eng\/catalog.search#\/metadata\/9df8df53-2a99-37a8-e044-0003ba9b0d98\">Geoindex to hydrogeological maps<\/a><\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n\t\t\t<\/div>\n\t\t\t<\/div><\/div><\/div><\/section>\n\n\n<section class=\"cta-section  sea-background-e \">\n\t<div class=\"container\">\n\t\t<div class=\"row md-row\">\n\t\t\t<div class=\"col-12\">\n\t\t\t\t<h2>Need more information?<\/h2>\t\t\t\t\t\t\t\t<div class=\"btn-wrap\"><a href=\"mailto:enquiries@bgs.ac.uk\"  class=\"button primary-background   \">Contact BGS Enquiries<\/a><\/div>\t\t\t<\/div>\n\t\t<\/div>\n\t<\/div>\n<\/section>\n\t","protected":false},"excerpt":{"rendered":"<p>Bringing together geological and hydrological characteristics of rocks and their usefulness for groundwater supply.<\/p>\n","protected":false},"author":3,"featured_media":3585,"parent":23,"menu_order":5,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"1","_relevanssi_noindex_reason":"","footnotes":""},"tags":[],"class_list":["post-3482","page","type-page","status-publish","has-post-thumbnail","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Hydrogeological maps - BGS Groundwater<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Hydrogeological maps - BGS Groundwater\" \/>\n<meta property=\"og:description\" content=\"Bringing together geological and hydrological characteristics of rocks and their usefulness for groundwater supply.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/\" \/>\n<meta property=\"og:site_name\" content=\"BGS Groundwater\" \/>\n<meta property=\"article:modified_time\" content=\"2025-11-07T14:25:28+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2025\/07\/625K-hydrogeology.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1488\" \/>\n\t<meta property=\"og:image:height\" content=\"1000\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/\",\"url\":\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/\",\"name\":\"Hydrogeological maps - BGS Groundwater\",\"isPartOf\":{\"@id\":\"https:\/\/www.bgs.ac.uk\/groundwater\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2025\/07\/625K-hydrogeology.jpg\",\"datePublished\":\"2025-07-10T11:52:13+00:00\",\"dateModified\":\"2025-11-07T14:25:28+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/#breadcrumb\"},\"inLanguage\":\"en-GB\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/#primaryimage\",\"url\":\"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2025\/07\/625K-hydrogeology.jpg\",\"contentUrl\":\"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2025\/07\/625K-hydrogeology.jpg\",\"width\":1488,\"height\":1000,\"caption\":\"BGS 625K hydrogeology map. BGS \u00a9 UKRI.\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/www.bgs.ac.uk\/groundwater\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Data\",\"item\":\"https:\/\/www.bgs.ac.uk\/groundwater\/data\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"Hydrogeological maps\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.bgs.ac.uk\/groundwater\/#website\",\"url\":\"https:\/\/www.bgs.ac.uk\/groundwater\/\",\"name\":\"BGS Groundwater\",\"description\":\"\",\"publisher\":{\"@id\":\"https:\/\/www.bgs.ac.uk\/groundwater\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/www.bgs.ac.uk\/groundwater\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-GB\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/www.bgs.ac.uk\/groundwater\/#organization\",\"name\":\"BGS Groundwater\",\"url\":\"https:\/\/www.bgs.ac.uk\/groundwater\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-GB\",\"@id\":\"https:\/\/www.bgs.ac.uk\/groundwater\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2023\/11\/BGS_Groundwater_pos.svg\",\"contentUrl\":\"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2023\/11\/BGS_Groundwater_pos.svg\",\"width\":547,\"height\":136,\"caption\":\"BGS Groundwater\"},\"image\":{\"@id\":\"https:\/\/www.bgs.ac.uk\/groundwater\/#\/schema\/logo\/image\/\"}}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Hydrogeological maps - BGS Groundwater","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/","og_locale":"en_GB","og_type":"article","og_title":"Hydrogeological maps - BGS Groundwater","og_description":"Bringing together geological and hydrological characteristics of rocks and their usefulness for groundwater supply.","og_url":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/","og_site_name":"BGS Groundwater","article_modified_time":"2025-11-07T14:25:28+00:00","og_image":[{"width":1488,"height":1000,"url":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2025\/07\/625K-hydrogeology.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_misc":{"Estimated reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/","url":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/","name":"Hydrogeological maps - BGS Groundwater","isPartOf":{"@id":"https:\/\/www.bgs.ac.uk\/groundwater\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/#primaryimage"},"image":{"@id":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/#primaryimage"},"thumbnailUrl":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2025\/07\/625K-hydrogeology.jpg","datePublished":"2025-07-10T11:52:13+00:00","dateModified":"2025-11-07T14:25:28+00:00","breadcrumb":{"@id":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/#breadcrumb"},"inLanguage":"en-GB","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/"]}]},{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/#primaryimage","url":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2025\/07\/625K-hydrogeology.jpg","contentUrl":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2025\/07\/625K-hydrogeology.jpg","width":1488,"height":1000,"caption":"BGS 625K hydrogeology map. BGS \u00a9 UKRI."},{"@type":"BreadcrumbList","@id":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/hydrogeological-maps\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/www.bgs.ac.uk\/groundwater\/"},{"@type":"ListItem","position":2,"name":"Data","item":"https:\/\/www.bgs.ac.uk\/groundwater\/data\/"},{"@type":"ListItem","position":3,"name":"Hydrogeological maps"}]},{"@type":"WebSite","@id":"https:\/\/www.bgs.ac.uk\/groundwater\/#website","url":"https:\/\/www.bgs.ac.uk\/groundwater\/","name":"BGS Groundwater","description":"","publisher":{"@id":"https:\/\/www.bgs.ac.uk\/groundwater\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.bgs.ac.uk\/groundwater\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-GB"},{"@type":"Organization","@id":"https:\/\/www.bgs.ac.uk\/groundwater\/#organization","name":"BGS Groundwater","url":"https:\/\/www.bgs.ac.uk\/groundwater\/","logo":{"@type":"ImageObject","inLanguage":"en-GB","@id":"https:\/\/www.bgs.ac.uk\/groundwater\/#\/schema\/logo\/image\/","url":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2023\/11\/BGS_Groundwater_pos.svg","contentUrl":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-content\/uploads\/sites\/4\/2023\/11\/BGS_Groundwater_pos.svg","width":547,"height":136,"caption":"BGS Groundwater"},"image":{"@id":"https:\/\/www.bgs.ac.uk\/groundwater\/#\/schema\/logo\/image\/"}}]}},"_links":{"self":[{"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/pages\/3482","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/comments?post=3482"}],"version-history":[{"count":6,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/pages\/3482\/revisions"}],"predecessor-version":[{"id":7091,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/pages\/3482\/revisions\/7091"}],"up":[{"embeddable":true,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/pages\/23"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/media\/3585"}],"wp:attachment":[{"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/media?parent=3482"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.bgs.ac.uk\/groundwater\/wp-json\/wp\/v2\/tags?post=3482"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}