diff --git a/cmd/loader/main.go b/cmd/loader/main.go
index 6157e9d..a9d8ac0 100644
--- a/cmd/loader/main.go
+++ b/cmd/loader/main.go
@@ -127,13 +127,14 @@ func loadMapsFrom(part string) {
 
 	log.Printf("Maps in %s:", mapsPath)
 	for key, gameMap := range gameMaps {
+		rect := gameMap.Rect()
 		hdr := gameMap.Header
 		fmt.Printf(
 			"    * `%s`: IsCampaignMap=%v W=%v:%v L=%v:%v SetName=%s\n",
 			key,
 			hdr.IsCampaignMap,
-			hdr.MinWidth, hdr.MaxWidth,
-			hdr.MinLength, hdr.MaxLength,
+			rect.Min.X, rect.Max.X,
+			rect.Min.Y, rect.Max.Y,
 			string(hdr.SetName[:]),
 		)
 	}
diff --git a/cmd/view-minimap/main.go b/cmd/view-minimap/main.go
index 524ffd5..7a80be5 100644
--- a/cmd/view-minimap/main.go
+++ b/cmd/view-minimap/main.go
@@ -172,18 +172,15 @@ func (e *env) Update(screenX, screenY int) error {
 
 func (e *env) Draw(screen *ebiten.Image) error {
 	gameMap := e.gameMap
-	imd, err := ebiten.NewImage(
-		int(gameMap.MaxWidth),
-		int(gameMap.MaxLength),
-		ebiten.FilterDefault,
-	)
+	rect := gameMap.Rect()
+	imd, err := ebiten.NewImage(rect.Dx(), rect.Dy(), ebiten.FilterDefault)
 
 	if err != nil {
 		return err
 	}
 
-	for y := int(gameMap.MinLength); y < int(gameMap.MaxLength); y++ {
-		for x := int(gameMap.MinWidth); x < int(gameMap.MaxWidth); x++ {
+	for y := int(rect.Min.Y); y < int(rect.Max.Y); y++ {
+		for x := int(rect.Min.X); x < int(rect.Max.X); x++ {
 			cell := gameMap.Cells.At(x, y, int(e.state.zIdx))
 			imd.Set(x, y, makeColour(&cell, e.state.cellIdx))
 		}