diff --git a/src/applications/project/controller/PhabricatorProjectBoardReorderController.php b/src/applications/project/controller/PhabricatorProjectBoardReorderController.php
--- a/src/applications/project/controller/PhabricatorProjectBoardReorderController.php
+++ b/src/applications/project/controller/PhabricatorProjectBoardReorderController.php
@@ -97,9 +97,20 @@
       ->setFlush(true);
 
     foreach ($columns as $column) {
+      // Don't allow milestone columns to be reordered.
+      $proxy = $column->getProxy();
+      if ($proxy && $proxy->isMilestone()) {
+        continue;
+      }
+
+      // At least for now, don't show subproject column.
+      if ($proxy) {
+        continue;
+      }
+
       $item = id(new PHUIObjectItemView())
         ->setHeader($column->getDisplayName())
-        ->addIcon('none', $column->getDisplayType());
+        ->addIcon($column->getHeaderIcon(), $column->getDisplayType());
 
       if ($column->isHidden()) {
         $item->setDisabled(true);
diff --git a/src/applications/project/controller/PhabricatorProjectColumnDetailController.php b/src/applications/project/controller/PhabricatorProjectColumnDetailController.php
--- a/src/applications/project/controller/PhabricatorProjectColumnDetailController.php
+++ b/src/applications/project/controller/PhabricatorProjectColumnDetailController.php
@@ -22,6 +22,8 @@
     }
     $this->setProject($project);
 
+    $project_id = $project->getID();
+
     $column = id(new PhabricatorProjectColumnQuery())
       ->setViewer($viewer)
       ->withIDs(array($id))
@@ -45,6 +47,10 @@
     $actions = $this->buildActionView($column);
     $properties = $this->buildPropertyView($column, $actions);
 
+    $crumbs = $this->buildApplicationCrumbs();
+    $crumbs->addTextCrumb(pht('Workboard'), "/project/board/{$project_id}/");
+    $crumbs->addTextCrumb(pht('Column: %s', $title));
+
     $box = id(new PHUIObjectBoxView())
       ->setHeader($header)
       ->addPropertyList($properties);
@@ -54,6 +60,7 @@
     return $this->newPage()
       ->setTitle($title)
       ->setNavigation($nav)
+      ->setCrumbs($crumbs)
       ->appendChild(
         array(
           $box,
diff --git a/src/applications/project/controller/PhabricatorProjectColumnEditController.php b/src/applications/project/controller/PhabricatorProjectColumnEditController.php
--- a/src/applications/project/controller/PhabricatorProjectColumnEditController.php
+++ b/src/applications/project/controller/PhabricatorProjectColumnEditController.php
@@ -81,10 +81,12 @@
 
       $xactions = array();
 
-      $type_name = PhabricatorProjectColumnTransaction::TYPE_NAME;
-      $xactions[] = id(new PhabricatorProjectColumnTransaction())
-        ->setTransactionType($type_name)
-        ->setNewValue($v_name);
+      if (!$column->getProxy()) {
+        $type_name = PhabricatorProjectColumnTransaction::TYPE_NAME;
+        $xactions[] = id(new PhabricatorProjectColumnTransaction())
+          ->setTransactionType($type_name)
+          ->setNewValue($v_name);
+      }
 
       $type_limit = PhabricatorProjectColumnTransaction::TYPE_LIMIT;
       $xactions[] = id(new PhabricatorProjectColumnTransaction())
@@ -105,26 +107,26 @@
       }
     }
 
-    $form = new AphrontFormView();
-    $form
-      ->setUser($request->getUser())
-      ->appendChild(
+    $form = id(new AphrontFormView())
+      ->setUser($request->getUser());
+
+    if (!$column->getProxy()) {
+      $form->appendChild(
         id(new AphrontFormTextControl())
           ->setValue($v_name)
           ->setLabel(pht('Name'))
           ->setName('name')
-          ->setError($e_name)
-          ->setCaption(
-            pht('This will be displayed as the header of the column.')))
-      ->appendChild(
-        id(new AphrontFormTextControl())
-          ->setValue($v_limit)
-          ->setLabel(pht('Point Limit'))
-          ->setName('limit')
-          ->setError($e_limit)
-          ->setCaption(
-            pht('Maximum number of points of tasks allowed in the column.')));
+          ->setError($e_name));
+    }
 
+    $form->appendChild(
+      id(new AphrontFormTextControl())
+        ->setValue($v_limit)
+        ->setLabel(pht('Point Limit'))
+        ->setName('limit')
+        ->setError($e_limit)
+        ->setCaption(
+          pht('Maximum number of points of tasks allowed in the column.')));
 
     if ($is_new) {
       $title = pht('Create Column');
diff --git a/src/applications/project/engine/PhabricatorBoardLayoutEngine.php b/src/applications/project/engine/PhabricatorBoardLayoutEngine.php
--- a/src/applications/project/engine/PhabricatorBoardLayoutEngine.php
+++ b/src/applications/project/engine/PhabricatorBoardLayoutEngine.php
@@ -317,7 +317,7 @@
       ->setViewer($viewer)
       ->withProjectPHIDs(array_keys($boards))
       ->execute();
-    $columns = msort($columns, 'getSequence');
+    $columns = msort($columns, 'getOrderingKey');
     $columns = mpull($columns, null, 'getPHID');
 
     $need_children = array();
@@ -368,6 +368,8 @@
         }
       }
 
+      $board_columns = msort($board_columns, 'getOrderingKey');
+
       $columns[$board_phid] = $board_columns;
     }
 
diff --git a/src/applications/project/storage/PhabricatorProjectColumn.php b/src/applications/project/storage/PhabricatorProjectColumn.php
--- a/src/applications/project/storage/PhabricatorProjectColumn.php
+++ b/src/applications/project/storage/PhabricatorProjectColumn.php
@@ -27,7 +27,8 @@
   public static function initializeNewColumn(PhabricatorUser $user) {
     return id(new PhabricatorProjectColumn())
       ->setName('')
-      ->setStatus(self::STATUS_ACTIVE);
+      ->setStatus(self::STATUS_ACTIVE)
+      ->attachProxy(null);
   }
 
   protected function getConfiguration() {
@@ -157,6 +158,25 @@
     return $this;
   }
 
+  public function getOrderingKey() {
+    $proxy = $this->getProxy();
+
+    // Normal columns and subproject columns go first, in a user-controlled
+    // order.
+
+    // All the milestone columns go last, in their sequential order.
+
+    if (!$proxy || !$proxy->isMilestone()) {
+      $group = 'A';
+      $sequence = $this->getSequence();
+    } else {
+      $group = 'B';
+      $sequence = $proxy->getMilestoneNumber();
+    }
+
+    return sprintf('%s%012d', $group, $sequence);
+  }
+
 
 /* -(  PhabricatorApplicationTransactionInterface  )------------------------- */