diff --git a/app/helpers/geoblacklight_helper.rb b/app/helpers/geoblacklight_helper.rb
index affe7009..0aa9f1e6 100644
--- a/app/helpers/geoblacklight_helper.rb
+++ b/app/helpers/geoblacklight_helper.rb
@@ -284,4 +284,9 @@ def ol_viewer
               :leaflet_options => leaflet_options
             })
   end
+
+  def iiif_manifest_container?
+    return false unless @document
+    @document&.item_viewer&.viewer_preference&.key?(:iiif_manifest)
+  end
 end
diff --git a/app/views/layouts/blacklight/base.html.erb b/app/views/layouts/blacklight/base.html.erb
new file mode 100644
index 00000000..5ecebc22
--- /dev/null
+++ b/app/views/layouts/blacklight/base.html.erb
@@ -0,0 +1,52 @@
+<!DOCTYPE html>
+<%= content_tag :html, class: 'no-js', **html_tag_attributes do %>
+  <head>
+    <meta charset="utf-8">
+    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
+    <meta name="geoblacklight-version" content="<%= Geoblacklight::VERSION %>">
+
+    <!-- Internet Explorer use the highest version available -->
+    <meta http-equiv="X-UA-Compatible" content="IE=edge">
+
+    <title><%= render_page_title %></title>
+    <script>
+      document.querySelector('html').classList.remove('no-js');
+    </script>
+    <%= opensearch_description_tag application_name, opensearch_catalog_url(format: 'xml') %>
+    <%= favicon_link_tag %>
+    <%= stylesheet_link_tag "application", media: "all", "data-turbo-track": "reload" %>
+    <%= javascript_include_tag "application", "data-turbo-track": "reload" %>
+
+    <%= vite_client_tag %>
+    <% if openlayers_container? %>
+      <%= vite_javascript_tag 'ol' %>
+    <% elsif iiif_manifest_container? %>
+      <%= vite_javascript_tag 'clover' %>
+    <% end %>
+
+    <%= csrf_meta_tags %>
+    <%= content_for(:head) %>
+  </head>
+  <body class="<%= render_body_class %>">
+    <nav id="skip-link" role="navigation" aria-label="<%= t('blacklight.skip_links.label') %>">
+      <%= link_to t('blacklight.skip_links.search_field'), '#search_field', class: 'element-invisible element-focusable rounded-bottom py-2 px-3', data: { turbolinks: 'false' } %>
+      <%= link_to t('blacklight.skip_links.main_content'), '#main-container', class: 'element-invisible element-focusable rounded-bottom py-2 px-3', data: { turbolinks: 'false' } %>
+      <%= content_for(:skip_links) %>
+    </nav>
+    <%= render partial: 'shared/header_navbar' %>
+
+    <main id="main-container" class="<%= container_classes %>" role="main" aria-label="<%= t('blacklight.main.aria.main_container') %>">
+      <%= content_for(:container_header) %>
+
+      <%= render partial: 'shared/flash_msg', layout: 'shared/flash_messages' %>
+
+      <div class="row">
+        <%= content_for?(:content) ? yield(:content) : yield %>
+      </div>
+    </main>
+
+    <%= render partial: 'shared/footer' %>
+    <%= render partial: 'shared/modal' %>
+  </body>
+<% end %>
