diff --git a/docs/DESIGN.md b/docs/DESIGN.md
index 15827f7..d331fe8 100644
--- a/docs/DESIGN.md
+++ b/docs/DESIGN.md
@@ -505,7 +505,12 @@ above, including:
   edge of the map, on indestructible ground, served by a road and trucks. Warehouses accept
   loose grain as well as packaged goods (pallets, barrels or sacks from packaging machines).
   Trucks matter to play, not just looks: what's waiting is collected when a truck comes, on its
-  schedule. How the player learns where the warehouses are is still open.
+  schedule. Finding them: the player spawns a short walk from the left warehouse, which takes
+  loose and bulk goods at lower prices with frequent trucks; the right one pays more for
+  packaged goods and is the long-haul goal. Both always show on the minimap and full map with an
+  edge-of-screen arrow, the first-start card names both and suggests starting left, signposts
+  stand on indestructible plinths at spawn, and each warehouse is a landmark (crane or silo,
+  beacon at night) with its road running a little way inland.
 
 ## Ideas not built yet