diff --git a/src/engine/InterestManagement/Terrain.java b/src/engine/InterestManagement/Terrain.java
index 63f79a98..b71e89cb 100644
--- a/src/engine/InterestManagement/Terrain.java
+++ b/src/engine/InterestManagement/Terrain.java
@@ -62,7 +62,10 @@ public class Terrain {
         this.cell_size.x = terrain_size.x / this.cell_count.x;
         this.cell_size.y = terrain_size.y / this.cell_count.y;
 
-        // Blending and height scaling configuration
+        // Blending and height scaling configuration.  These rations are used to
+        // determine whether a location is within the blending area.  Can also be
+        // done with bounding boxes and subtracting two areas but this is the way
+        // SB modeled things, and we are an SB emulator!
 
         Vector2f major_blend = new Vector2f(this.zone.max_blend / this.zone.major_radius,
                 this.zone.min_blend / this.zone.major_radius);