{"id":3236,"date":"2025-06-03T23:56:46","date_gmt":"2025-06-03T21:56:46","guid":{"rendered":"https:\/\/voyages-en-france.fr\/?p=3236"},"modified":"2025-06-03T23:58:59","modified_gmt":"2025-06-03T21:58:59","slug":"la-fosse-dionne-a-tonnerre-dans-lyonne","status":"publish","type":"post","link":"https:\/\/voyages-en-france.fr\/index.php\/2025\/06\/03\/la-fosse-dionne-a-tonnerre-dans-lyonne\/","title":{"rendered":"La Fosse Dionne \u00e0 Tonnerre dans l&rsquo;Yonne"},"content":{"rendered":"<span itemprop=\"description\"><h2>La Fosse Dionne, qu&rsquo;est ce exactement?<\/h2>\n<ul>\n<li data-start=\"303\" data-end=\"381\">La Fosse Dionne se trouve \u00e0 Tonnerre dans l&rsquo;Yonne<\/li>\n<li data-start=\"303\" data-end=\"381\">\n<p data-start=\"305\" data-end=\"381\">C\u2019est un <strong data-start=\"314\" data-end=\"337\">puits naturel d\u2019eau<\/strong> circulaire, \u00e0 la couleur bleu-vert intense.<\/p>\n<\/li>\n<li data-start=\"382\" data-end=\"541\">\n<p data-start=\"384\" data-end=\"541\">Elle est <strong data-start=\"393\" data-end=\"431\">aliment\u00e9e par un r\u00e9seau souterrain<\/strong> complexe (karstique), et son d\u00e9bit est impressionnant, atteignant <strong data-start=\"498\" data-end=\"532\">jusqu\u2019\u00e0 300 litres par seconde<\/strong> en crue.<\/p>\n<\/li>\n<li data-start=\"542\" data-end=\"668\">\n<p data-start=\"544\" data-end=\"668\">La source jaillit dans un <strong data-start=\"570\" data-end=\"605\">bassin de 14 m\u00e8tres de diam\u00e8tre<\/strong>, entour\u00e9 d\u2019une margelle de pierre construite au XVIIIe si\u00e8cle.<\/p>\n<\/li>\n<\/ul>\n<figure id=\"attachment_3238\" aria-describedby=\"caption-attachment-3238\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"3238\" data-permalink=\"https:\/\/voyages-en-france.fr\/index.php\/2025\/06\/03\/la-fosse-dionne-a-tonnerre-dans-lyonne\/img_7515\/\" data-orig-file=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7515-scaled.jpg?fit=2560%2C1920&amp;ssl=1\" data-orig-size=\"2560,1920\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;iPhone 15&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1744039921&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;1.54&quot;,&quot;iso&quot;:&quot;25&quot;,&quot;shutter_speed&quot;:&quot;0.0058479532163743&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"IMG_7515\" data-image-description=\"&lt;p&gt;La Fosse Dionne \u00e0 Tonnerre (79)&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;La Fosse Dionne \u00e0 Tonnerre (79)&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7515-scaled.jpg?fit=300%2C225&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7515-scaled.jpg?fit=1024%2C768&amp;ssl=1\" class=\"wp-image-3238 size-large\" src=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7515.jpg?resize=1024%2C768&#038;ssl=1\" alt=\"La Fosse Dionne \u00e0 Tonnerre (89)\" width=\"1024\" height=\"768\" srcset=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7515-scaled.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7515-scaled.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7515-scaled.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7515-scaled.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7515-scaled.jpg?resize=2048%2C1536&amp;ssl=1 2048w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7515-scaled.jpg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7515-scaled.jpg?w=2400&amp;ssl=1 2400w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-3238\" class=\"wp-caption-text\">La Fosse Dionne \u00e0 Tonnerre (89)<\/figcaption><\/figure>\n<figure id=\"attachment_3237\" aria-describedby=\"caption-attachment-3237\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"3237\" data-permalink=\"https:\/\/voyages-en-france.fr\/index.php\/2025\/06\/03\/la-fosse-dionne-a-tonnerre-dans-lyonne\/img_7509\/\" data-orig-file=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7509-scaled.jpg?fit=2560%2C1920&amp;ssl=1\" data-orig-size=\"2560,1920\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;2.4&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;iPhone 15&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1744039786&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;1.54&quot;,&quot;iso&quot;:&quot;25&quot;,&quot;shutter_speed&quot;:&quot;0.0097087378640777&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"IMG_7509\" data-image-description=\"&lt;p&gt;La Fosse Dionne \u00e0 Tonnerre (79)&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;La Fosse Dionne \u00e0 Tonnerre (79)&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7509-scaled.jpg?fit=300%2C225&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7509-scaled.jpg?fit=1024%2C768&amp;ssl=1\" class=\"wp-image-3237 size-large\" src=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7509.jpg?resize=1024%2C768&#038;ssl=1\" alt=\"La Fosse Dionne \u00e0 Tonnerre (89)\" width=\"1024\" height=\"768\" srcset=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7509-scaled.jpg?resize=1024%2C768&amp;ssl=1 1024w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7509-scaled.jpg?resize=300%2C225&amp;ssl=1 300w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7509-scaled.jpg?resize=768%2C576&amp;ssl=1 768w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7509-scaled.jpg?resize=1536%2C1152&amp;ssl=1 1536w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7509-scaled.jpg?resize=2048%2C1536&amp;ssl=1 2048w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7509-scaled.jpg?resize=1200%2C900&amp;ssl=1 1200w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/IMG_7509-scaled.jpg?w=2400&amp;ssl=1 2400w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-3237\" class=\"wp-caption-text\">La Fosse Dionne \u00e0 Tonnerre (89)<\/figcaption><\/figure>\n<h2>Historique de la Fosse Dionne<\/h2>\n<p>La Fosse Dionne est une source karstique situ\u00e9e au c\u0153ur de Tonnerre, en Bourgogne. Elle est connue depuis l\u2019Antiquit\u00e9, probablement v\u00e9n\u00e9r\u00e9e comme une source sacr\u00e9e par les Celtes, ce que sugg\u00e8re son nom d\u2019origine : Divona, signifiant \u00ab eau divine \u00bb ou \u00ab source sacr\u00e9e \u00bb.<\/p>\n<p>Au Moyen \u00c2ge, elle joue un r\u00f4le crucial dans la vie quotidienne, fournissant de l\u2019eau \u00e0 la population. En 1758, le chevalier d\u2019\u00c9on, originaire de Tonnerre, fait am\u00e9nager la source en lavoir circulaire couvert. Cet am\u00e9nagement est typique de l\u2019\u00e9poque des Lumi\u00e8res, alliant hygi\u00e8ne publique et utilit\u00e9 sociale.<\/p>\n<p>La source, entour\u00e9e de myst\u00e8res depuis toujours, fascine : son d\u00e9bit constant, sa profondeur inconnue, et la couleur changeante de ses eaux inspirent de nombreuses l\u00e9gendes locales, notamment celle d\u2019un serpent ou dragon qui y aurait \u00e9lu domicile.<\/p>\n<p>Au XXe si\u00e8cle, la Fosse Dionne devient un site patrimonial majeur de Tonnerre. Elle est class\u00e9e Monument historique en 1920, en raison de son int\u00e9r\u00eat architectural, g\u00e9ologique et culturel.<\/p>\n<p>Des explorations sp\u00e9l\u00e9ologiques ont tent\u00e9 de percer ses secrets, mais plusieurs plongeurs y ont perdu la vie, ce qui a contribu\u00e9 \u00e0 son aur\u00e9ole de myst\u00e8re. Aujourd\u2019hui, les plong\u00e9es y sont extr\u00eamement r\u00e9glement\u00e9es.<\/p>\n<figure id=\"attachment_3239\" aria-describedby=\"caption-attachment-3239\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"3239\" data-permalink=\"https:\/\/voyages-en-france.fr\/index.php\/2025\/06\/03\/la-fosse-dionne-a-tonnerre-dans-lyonne\/ds2_0206\/\" data-orig-file=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0206-scaled.jpg?fit=2560%2C1708&amp;ssl=1\" data-orig-size=\"2560,1708\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;5.6&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;NIKON D5600&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1744039930&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;18&quot;,&quot;iso&quot;:&quot;400&quot;,&quot;shutter_speed&quot;:&quot;0.008&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"DS2_0206\" data-image-description=\"&lt;p&gt;La Fosse Dionne \u00e0 Tonnerre (79)&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;La Fosse Dionne \u00e0 Tonnerre (79)&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0206-scaled.jpg?fit=300%2C200&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0206-scaled.jpg?fit=1024%2C683&amp;ssl=1\" class=\"wp-image-3239 size-large\" src=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0206.jpg?resize=1024%2C683&#038;ssl=1\" alt=\"La Fosse Dionne \u00e0 Tonnerre (89)\" width=\"1024\" height=\"683\" srcset=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0206-scaled.jpg?resize=1024%2C683&amp;ssl=1 1024w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0206-scaled.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0206-scaled.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0206-scaled.jpg?resize=1536%2C1025&amp;ssl=1 1536w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0206-scaled.jpg?resize=2048%2C1367&amp;ssl=1 2048w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0206-scaled.jpg?resize=1200%2C801&amp;ssl=1 1200w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0206-scaled.jpg?w=2400&amp;ssl=1 2400w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-3239\" class=\"wp-caption-text\">La Fosse Dionne \u00e0 Tonnerre (89)<\/figcaption><\/figure>\n<h2>\u00c9glise Saint-Pierre de Tonnerre<\/h2>\n<p>B\u00e2tie \u00e0 partir du IXe si\u00e8cle, elle a subi de nombreuses modifications avec sa fa\u00e7ade de style baroque, elle domine la ville et offre un panorama. Elle a \u00e9t\u00e9 quasiment d\u00e9truite en 1556 par un incendie qui ravagea Tonnerre. \u00c0 l&rsquo;int\u00e9rieur, se trouve un orgue dont le buffet date de 1616, une chaire \u00e0 pr\u00eacher r\u00e9alis\u00e9e dans les ann\u00e9es 1712-1713, et des vitraux datant du XVIe si\u00e8cle et restaur\u00e9s en 2003. Il ne reste plus rien de l\u2019ancienne chapelle du XIe si\u00e8cle. L&rsquo;\u00e9difice est class\u00e9 au titre des monuments historiques en 1920<\/p>\n<figure id=\"attachment_3240\" aria-describedby=\"caption-attachment-3240\" style=\"width: 1024px\" class=\"wp-caption aligncenter\"><img data-recalc-dims=\"1\" loading=\"lazy\" decoding=\"async\" data-attachment-id=\"3240\" data-permalink=\"https:\/\/voyages-en-france.fr\/index.php\/2025\/06\/03\/la-fosse-dionne-a-tonnerre-dans-lyonne\/ds2_0214\/\" data-orig-file=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0214-scaled.jpg?fit=2560%2C1708&amp;ssl=1\" data-orig-size=\"2560,1708\" data-comments-opened=\"1\" data-image-meta=\"{&quot;aperture&quot;:&quot;8&quot;,&quot;credit&quot;:&quot;&quot;,&quot;camera&quot;:&quot;NIKON D5600&quot;,&quot;caption&quot;:&quot;&quot;,&quot;created_timestamp&quot;:&quot;1744040726&quot;,&quot;copyright&quot;:&quot;&quot;,&quot;focal_length&quot;:&quot;20&quot;,&quot;iso&quot;:&quot;250&quot;,&quot;shutter_speed&quot;:&quot;0.004&quot;,&quot;title&quot;:&quot;&quot;,&quot;orientation&quot;:&quot;1&quot;}\" data-image-title=\"DS2_0214\" data-image-description=\"&lt;p&gt;\u00c9glise Saint-Pierre de Tonnerre&lt;\/p&gt;\n\" data-image-caption=\"&lt;p&gt;\u00c9glise Saint-Pierre de Tonnerre&lt;\/p&gt;\n\" data-medium-file=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0214-scaled.jpg?fit=300%2C200&amp;ssl=1\" data-large-file=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0214-scaled.jpg?fit=1024%2C683&amp;ssl=1\" class=\"size-large wp-image-3240\" src=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0214.jpg?resize=1024%2C683&#038;ssl=1\" alt=\"\u00c9glise Saint-Pierre de Tonnerre\" width=\"1024\" height=\"683\" srcset=\"https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0214-scaled.jpg?resize=1024%2C683&amp;ssl=1 1024w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0214-scaled.jpg?resize=300%2C200&amp;ssl=1 300w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0214-scaled.jpg?resize=768%2C512&amp;ssl=1 768w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0214-scaled.jpg?resize=1536%2C1025&amp;ssl=1 1536w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0214-scaled.jpg?resize=2048%2C1367&amp;ssl=1 2048w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0214-scaled.jpg?resize=1200%2C801&amp;ssl=1 1200w, https:\/\/i0.wp.com\/voyages-en-france.fr\/wp-content\/uploads\/2025\/06\/DS2_0214-scaled.jpg?w=2400&amp;ssl=1 2400w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><figcaption id=\"caption-attachment-3240\" class=\"wp-caption-text\">\u00c9glise Saint-Pierre de Tonnerre<\/figcaption><\/figure>\n<p style=\"text-align: center;\"><iframe loading=\"lazy\" style=\"border: 0;\" src=\"https:\/\/www.google.com\/maps\/embed?pb=!1m18!1m12!1m3!1d1425347.4306412183!2d3.425526231092297!3d47.3215650664233!2m3!1f0!2f0!3f0!3m2!1i1024!2i768!4f13.1!3m3!1m2!1s0x47ee7b004a5a9585%3A0x5663bc2266d4815e!2sFosse%20Dionne!5e0!3m2!1sfr!2sfr!4v1748987664695!5m2!1sfr!2sfr\" width=\"1024\" height=\"550\" allowfullscreen=\"allowfullscreen\"><span data-mce-type=\"bookmark\" style=\"display: inline-block; width: 0px; overflow: hidden; line-height: 0;\" class=\"mce_SELRES_start\">\ufeff<\/span><\/iframe><\/p>\n<span>","protected":false},"excerpt":{"rendered":"<p class=\"excerpt\"><span itemprop=\"description\">La Fosse Dionne, qu&rsquo;est ce exactement? La Fosse Dionne se trouve \u00e0 Tonnerre dans l&rsquo;Yonne C\u2019est un puits naturel d\u2019eau circulaire, \u00e0 la couleur bleu-vert intense. Elle est aliment\u00e9e par un r\u00e9seau souterrain complexe (karstique), et son d\u00e9bit est impressionnant,&hellip;<\/span><\/p>\n<p class=\"more-link-p btn-align-right\"><a class=\"blue zoom-btn\" href=\"https:\/\/voyages-en-france.fr\/index.php\/2025\/06\/03\/la-fosse-dionne-a-tonnerre-dans-lyonne\/\">Lire la suite<\/a><\/p>\n","protected":false},"author":1,"featured_media":3241,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"pgc_sgb_lightbox_settings":"","jetpack_post_was_ever_published":false,"_bos_mb_destination":[""],"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[12],"tags":[159,58,432,433,158],"class_list":["post-3236","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-site-naturel","tag-159","tag-bourgogne","tag-fosse-dionne","tag-tonnerre","tag-yonne","zoom-theme-has-thumb"],"yoast_head":"<!-- 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