diff --git a/D03_PlanAnalysis/D03_PlanAnalysis_UI_LayerDefs.ts b/D03_PlanAnalysis/D03_PlanAnalysis_UI_LayerDefs.ts
index ccf4dce8b..b23ea6a82 100644
--- a/D03_PlanAnalysis/D03_PlanAnalysis_UI_LayerDefs.ts
+++ b/D03_PlanAnalysis/D03_PlanAnalysis_UI_LayerDefs.ts
@@ -166,7 +166,7 @@ export const ZONE_COLORS: Record<string, string> = {
 };
 /** 산사태위험지도 범례(1 등급 = 가장 위험 · 색 = WMS 그림 색). */
 export const LANDSLIDE_LEGEND: LegendItem[] = [1, 2, 3, 4, 5].map((grade) => ({
-  label: `${grade}등급`,
+  label: `산사태 ${grade}등급`,
   color: `var(--draw-map-landslide-grade-${grade})`,
 }));
 /** 선 겹 — 이름 · 그림 꼴(서버 `LINE_KINDS` 열쇠 = `kind` · 없으면 0차곡). 새 선 겹 = 여기 한 줄. */
diff --git a/D03_PlanAnalysis/D03_PlanAnalysis_UI_Layers.ts b/D03_PlanAnalysis/D03_PlanAnalysis_UI_Layers.ts
index 825bee8a0..26718c2fa 100644
--- a/D03_PlanAnalysis/D03_PlanAnalysis_UI_Layers.ts
+++ b/D03_PlanAnalysis/D03_PlanAnalysis_UI_Layers.ts
@@ -121,6 +121,8 @@ export interface PlanLayers {
     counts: Record<string, number>;
     /** GL 겹마다 화면에 그린 지물 수(보임만 · GL 끔 = 빈 것). */
     gl: Record<string, number>;
+    /** GL 줌(GL 끔 = null · 622-2 검증). */
+    zoom: number | null;
     /** 겹이 받은 범위(마지막 `load` 값) · 차례 번호(475 검증). */
     area: [number, number, number, number] | null;
     turn: number;
@@ -672,6 +674,7 @@ export function createPlanLayers(opts: {
               : gl.map()!.queryRenderedFeatures({ layers: [layer.id] }).length,
           ]),
       ),
+      zoom: gl.map()?.getZoom() ?? null,
       area,
       turn: areaTurn,
       tiles: tiles.state(),