diff --git a/Gemfile.lock b/Gemfile.lock
index a2a709c..1d09208 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -524,6 +524,7 @@ PLATFORMS
   aarch64-linux
   arm64-darwin-22
   x86_64-darwin-22
+  x86_64-darwin-24
   x86_64-linux
   x86_64-linux-musl
 
diff --git a/app/views/layouts/blacklight/base.html.erb b/app/views/layouts/blacklight/base.html.erb
index 9fe22e2..dcb6256 100644
--- a/app/views/layouts/blacklight/base.html.erb
+++ b/app/views/layouts/blacklight/base.html.erb
@@ -46,7 +46,13 @@
     <div class="ucb_container">
         <%= 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) %>
+            <%= content_for(:container_header) || content_tag(:div, class: "sr-only visually-hidden") do
+               if render_page_title == "UC Berkeley GeoData" 
+                  content_tag(:h1, render_page_title) + content_tag(:h2, render_page_title + " Categories")
+               else 
+                  content_tag(:h1, render_page_title)
+               end 
+            end %>
             <%= render partial: 'shared/flash_msg', layout: 'shared/flash_messages' %>
 
             <div class="row">