diff --git a/wiki-tile.pl b/wiki-tile.pl
index 346196c..f88df88 100644
--- a/wiki-tile.pl
+++ b/wiki-tile.pl
@@ -282,13 +282,22 @@ if($html_document)
 	open (my $fh, "> $outfile") or croak "Couldn't open $outfile for writing: $!";
 	say $fh wrap_in_html($grid);
 	close $fh;
+	if($regiondir)
+	{
+		chdir $regiondir || croak "Couldn't chdir to $regiondir: $!";
+		while(my ($region, $region_grid) = each %region_grids)
+		{
+			open (my $region_fh, "> $region.html") or croak "Couldn't open $region.html for writing: $!";
+			say $region_fh wrap_in_html($region_grid);
+			close $region_fh;
+		}
+	}
 }
 else
 {
 	open (my $fh, "> $outfile") or croak "Couldn't open $outfile for writing: $!";
 	say $fh $grid->render;
 	close $fh;
-	say STDERR $regiondir;
 	if($regiondir)
 	{
 		chdir $regiondir || croak "Couldn't chdir to $regiondir: $!";