diff --git a/cli/arcgispro_cli/commands/query.py b/cli/arcgispro_cli/commands/query.py
index df82579..2567cb0 100644
--- a/cli/arcgispro_cli/commands/query.py
+++ b/cli/arcgispro_cli/commands/query.py
@@ -241,6 +241,7 @@ def layer_cmd(name, path, as_json):
 
     console.print()
     console.print(Panel.fit(f"[bold]{layer.get('name', 'Unknown')}[/bold]", title="Layer"))
+    # Map membership (a layer can appear in multiple maps)
     if map_names:
         if len(map_names) == 1:
             console.print(f"  Map: {map_names[0]}")
@@ -248,6 +249,20 @@ def layer_cmd(name, path, as_json):
             console.print(f"  Maps: {', '.join(map_names)}")
     else:
         console.print("  Map: -")
+
+    # If map metadata is available, show which of the above maps are active
+    maps = context.get("maps") or []
+    if map_names and maps:
+        active_names = []
+        for mn in map_names:
+            m = next((mm for mm in maps if (mm.get("name") or "").lower() == str(mn).lower()), None)
+            if m and m.get("isActiveMap") is True:
+                active_names.append(mn)
+
+        if len(map_names) == 1:
+            console.print(f"  Active map: {'Yes' if active_names else 'No'}")
+        elif active_names:
+            console.print(f"  Active maps: {', '.join(active_names)}")
     console.print(f"  Type: {layer.get('layerType', '-')}")
     console.print(f"  Geometry: {layer.get('geometryType', '-') or '-'}")
     console.print(f"  Visible: {'Yes' if layer.get('isVisible') else 'No'}")
diff --git a/cli/tests/test_cli.py b/cli/tests/test_cli.py
index 14d0523..7da75fd 100644
--- a/cli/tests/test_cli.py
+++ b/cli/tests/test_cli.py
@@ -52,7 +52,38 @@ def test_status_no_folder():
 def test_addin_bundled():
     """Test that the add-in file is bundled."""
     from arcgispro_cli.commands.install import get_addin_path
-    
+
     addin_path = get_addin_path()
     assert addin_path.exists(), f"Add-in not found at {addin_path}"
     assert addin_path.suffix == ".addin"
+
+
+def _write_json(path, obj):
+    import json
+
+    path.parent.mkdir(parents=True, exist_ok=True)
+    path.write_text(json.dumps(obj, indent=2), encoding="utf-8")
+
+
+def test_layer_shows_active_map_flag():
+    runner = CliRunner()
+    with runner.isolated_filesystem():
+        from pathlib import Path
+
+        _write_json(
+            Path(".arcgispro/context/maps.json"),
+            [
+                {"name": "Map A", "isActiveMap": True},
+                {"name": "Map B", "isActiveMap": False},
+            ],
+        )
+        _write_json(
+            Path(".arcgispro/context/layers.json"),
+            [
+                {"name": "Layer 1", "mapName": "Map A", "isVisible": True},
+            ],
+        )
+
+        result = runner.invoke(main, ["layer", "Layer 1"])
+        assert result.exit_code == 0
+        assert "Active map: Yes" in result.output