diff --git a/asm/region_map.s b/asm/region_map.s
index 7708a9fc88..ea19702e5d 100644
--- a/asm/region_map.s
+++ b/asm/region_map.s
@@ -5,170 +5,6 @@
 
 	.text
 
-	thumb_func_start sub_8124904
-sub_8124904: @ 8124904
-	push {r4-r7,lr}
-	sub sp, 0xC
-	ldr r2, =gUnknown_0203A148
-	ldr r0, [r2]
-	ldrb r0, [r0, 0xA]
-	subs r0, 0x1
-	lsls r0, 24
-	lsrs r0, 24
-	cmp r0, 0x3
-	bls _0812491A
-	b _08124A2C
-_0812491A:
-	movs r7, 0
-	movs r3, 0
-	ldr r0, =gUnknown_085A1EDC
-	mov r12, r0
-	adds r5, r2, 0
-	movs r6, 0
-_08124926:
-	ldr r0, [r5]
-	lsls r1, r3, 3
-	mov r2, r12
-	adds r4, r1, r2
-	ldrh r0, [r0, 0x8]
-	ldrh r1, [r4, 0x4]
-	cmp r0, r1
-	bne _081249C4
-	ldrh r0, [r4, 0x6]
-	bl FlagGet
-	lsls r0, 24
-	cmp r0, 0
-	beq _081249CE
-	ldr r0, [r5]
-	ldrb r0, [r0, 0xB]
-	ldr r1, [r4]
-	lsls r0, 2
-	adds r0, r1
-	ldr r0, [r0]
-	bl StringLength
-	movs r7, 0x1
-	movs r0, 0
-	movs r1, 0
-	bl sub_8198070
-	movs r0, 0x1
-	movs r1, 0
-	movs r2, 0x65
-	movs r3, 0xD
-	bl SetWindowBorderStyle
-	ldr r2, [r5]
-	adds r2, 0xC
-	str r7, [sp]
-	str r6, [sp, 0x4]
-	str r6, [sp, 0x8]
-	movs r0, 0x1
-	movs r1, 0x1
-	movs r3, 0
-	bl PrintTextOnWindow
-	ldr r0, [r5]
-	ldrb r0, [r0, 0xB]
-	ldr r1, [r4]
-	lsls r0, 2
-	adds r0, r1
-	ldr r4, [r0]
-	movs r0, 0x1
-	adds r1, r4, 0
-	movs r2, 0x60
-	bl GetStringRightAlignXOffset
-	adds r3, r0, 0
-	lsls r3, 24
-	lsrs r3, 24
-	movs r0, 0x11
-	str r0, [sp]
-	str r6, [sp, 0x4]
-	str r6, [sp, 0x8]
-	movs r0, 0x1
-	movs r1, 0x1
-	adds r2, r4, 0
-	bl PrintTextOnWindow
-	movs r0, 0
-	bl schedule_bg_copy_tilemap_to_vram
-	ldr r0, =gUnknown_03001180
-	str r7, [r0]
-	b _081249CE
-	.pool
-_081249C4:
-	adds r0, r3, 0x1
-	lsls r0, 16
-	lsrs r3, r0, 16
-	cmp r3, 0
-	beq _08124926
-_081249CE:
-	cmp r7, 0
-	bne _08124A62
-	ldr r0, =gUnknown_03001180
-	ldr r0, [r0]
-	cmp r0, 0x1
-	bne _081249F4
-	movs r0, 0x1
-	movs r1, 0
-	bl sub_8198070
-	movs r0, 0
-	movs r1, 0
-	movs r2, 0x65
-	movs r3, 0xD
-	bl SetWindowBorderStyle
-	b _081249FC
-	.pool
-_081249F4:
-	movs r0, 0
-	movs r1, 0x11
-	bl FillWindowPixelBuffer
-_081249FC:
-	ldr r0, =gUnknown_0203A148
-	ldr r2, [r0]
-	adds r2, 0xC
-	movs r0, 0x1
-	str r0, [sp]
-	movs r4, 0
-	str r4, [sp, 0x4]
-	str r4, [sp, 0x8]
-	movs r0, 0
-	movs r1, 0x1
-	movs r3, 0
-	bl PrintTextOnWindow
-	movs r0, 0
-	bl schedule_bg_copy_tilemap_to_vram
-	ldr r0, =gUnknown_03001180
-	str r4, [r0]
-	b _08124A62
-	.pool
-_08124A2C:
-	ldr r4, =gUnknown_03001180
-	ldr r0, [r4]
-	cmp r0, 0x1
-	bne _08124A48
-	movs r0, 0x1
-	movs r1, 0
-	bl sub_8198070
-	movs r0, 0
-	movs r1, 0
-	movs r2, 0x65
-	movs r3, 0xD
-	bl SetWindowBorderStyle
-_08124A48:
-	movs r0, 0
-	movs r1, 0x11
-	bl FillWindowPixelBuffer
-	movs r0, 0
-	movs r1, 0x2
-	bl CopyWindowToVram
-	movs r0, 0
-	bl schedule_bg_copy_tilemap_to_vram
-	movs r0, 0
-	str r0, [r4]
-_08124A62:
-	add sp, 0xC
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.pool
-	thumb_func_end sub_8124904
-
 	thumb_func_start sub_8124A70
 sub_8124A70: @ 8124A70
 	push {r4,r5,lr}
diff --git a/include/region_map.h b/include/region_map.h
index 1db8110839..2df818a44c 100644
--- a/include/region_map.h
+++ b/include/region_map.h
@@ -222,6 +222,24 @@ enum {
     MAPSEC_NONE
 };
 
+enum
+{
+    INPUT_EVENT_NONE,
+    INPUT_EVENT_MOVE_START,
+    INPUT_EVENT_MOVE_CONT,
+    INPUT_EVENT_MOVE_END,
+    INPUT_EVENT_A_BUTTON,
+    INPUT_EVENT_B_BUTTON,
+};
+
+enum {
+    MAPSECTYPE_NONE,
+    MAPSECTYPE_PLAIN,
+    MAPSECTYPE_CITY_CANFLY,
+    MAPSECTYPE_CITY_CANTFLY,
+    MAPSECTYPE_BATTLE_FRONTIER
+};
+
 struct RegionMap {
     /*0x000*/ u16 mapSecId;
     /*0x002*/ u8 iconDrawType;
@@ -277,24 +295,6 @@ struct RegionMap {
     /*0x284*/ u8 cursorLargeImage[0x600];
 }; // size = 0x884
 
-enum
-{
-    INPUT_EVENT_NONE,
-    INPUT_EVENT_MOVE_START,
-    INPUT_EVENT_MOVE_CONT,
-    INPUT_EVENT_MOVE_END,
-    INPUT_EVENT_A_BUTTON,
-    INPUT_EVENT_B_BUTTON,
-};
-
-enum {
-    MAPSECTYPE_NONE,
-    MAPSECTYPE_PLAIN,
-    MAPSECTYPE_CITY_CANFLY,
-    MAPSECTYPE_CITY_CANTFLY,
-    MAPSECTYPE_BATTLE_FRONTIER
-};
-
 // Exported RAM declarations
 
 // Exported ROM declarations
diff --git a/src/region_map.c b/src/region_map.c
index 15de369b99..b2cb25a595 100644
--- a/src/region_map.c
+++ b/src/region_map.c
@@ -14,6 +14,7 @@
 #include "rom6.h"
 #include "secret_base.h"
 #include "string_util.h"
+#include "international_string_util.h"
 #include "strings.h"
 #include "text.h"
 #include "text_window.h"
@@ -110,6 +111,11 @@ extern const struct WindowTemplate gUnknown_085A1EF0[];
 extern const u8 gUnknown_085A1C58[];
 extern const u8 gUnknown_085A1C90[];
 extern const u16 gUnknown_085A1C38[];
+extern const struct {
+    const u8 *const *name;
+    u16 mapSecId;
+    u16 flag;
+} gUnknown_085A1EDC[];
 
 // .text
 
@@ -1395,3 +1401,61 @@ void sub_81248F4(void callback(void))
     gUnknown_0203A148->unk_000 = callback;
     gUnknown_0203A148->unk_004 = 0;
 }
+
+void sub_8124904(void)
+{
+    u16 i;
+    bool32 flag;
+    const u8 *name;
+
+    if (gUnknown_0203A148->regionMap.iconDrawType > MAPSECTYPE_NONE && gUnknown_0203A148->regionMap.iconDrawType <= MAPSECTYPE_BATTLE_FRONTIER)
+    {
+        flag = FALSE;
+        for (i = 0; i < 1; i ++)
+        {
+            if (gUnknown_0203A148->regionMap.mapSecId == gUnknown_085A1EDC[i].mapSecId)
+            {
+                if (FlagGet(gUnknown_085A1EDC[i].flag))
+                {
+                    StringLength(gUnknown_085A1EDC[i].name[gUnknown_0203A148->regionMap.posWithinMapSec]);
+                    flag = TRUE;
+                    sub_8198070(0, FALSE);
+                    SetWindowBorderStyle(1, FALSE, 0x65, 0x0d);
+                    PrintTextOnWindow(1, 1, gUnknown_0203A148->regionMap.mapSecName, 0, 1, 0, NULL);
+                    name = gUnknown_085A1EDC[i].name[gUnknown_0203A148->regionMap.posWithinMapSec];
+                    PrintTextOnWindow(1, 1, name, GetStringRightAlignXOffset(1, name, 0x60), 0x11, 0, NULL);
+                    schedule_bg_copy_tilemap_to_vram(0);
+                    gUnknown_03001180 = TRUE;
+                }
+                break;
+            }
+        }
+        if (!flag)
+        {
+            if (gUnknown_03001180 == TRUE)
+            {
+                sub_8198070(1, FALSE);
+                SetWindowBorderStyle(0, FALSE, 0x65, 0x0d);
+            }
+            else
+            {
+                FillWindowPixelBuffer(0, 0x11);
+            }
+            PrintTextOnWindow(0, 1, gUnknown_0203A148->regionMap.mapSecName, 0, 1, 0, NULL);
+            schedule_bg_copy_tilemap_to_vram(0);
+            gUnknown_03001180 = FALSE;
+        }
+    }
+    else
+    {
+        if (gUnknown_03001180 == TRUE)
+        {
+            sub_8198070(1, FALSE);
+            SetWindowBorderStyle(0, FALSE, 0x65, 0x0d);
+        }
+        FillWindowPixelBuffer(0, 0x11);
+        CopyWindowToVram(0, 2);
+        schedule_bg_copy_tilemap_to_vram(0);
+        gUnknown_03001180 = FALSE;
+    }
+}