diff --git a/asm/code_80A26CC_1.s b/asm/code_80A26CC_1.s
index b05cd0c45..1d0f77a57 100644
--- a/asm/code_80A26CC_1.s
+++ b/asm/code_80A26CC_1.s
@@ -6,245 +6,6 @@
 	.text	
 
 
-
-
-	thumb_func_start sub_80A3B80
-sub_80A3B80:
-	push {r4,lr}
-	adds r3, r0, 0
-	lsls r1, 24
-	lsrs r1, 24
-	lsls r2, 24
-	lsrs r2, 24
-	ldr r4, _080A3BA8
-	adds r0, r3, r4
-	ldr r0, [r0]
-	cmp r0, 0
-	beq _080A3BA2
-	adds r4, 0x4
-	adds r0, r3, r4
-	strb r1, [r0]
-	ldr r1, _080A3BAC
-	adds r0, r3, r1
-	strb r2, [r0]
-_080A3BA2:
-	pop {r4}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A3BA8: .4byte 0x0000046c
-_080A3BAC: .4byte 0x00000471
-	thumb_func_end sub_80A3B80
-
-	thumb_func_start sub_80A3BB0
-sub_80A3BB0:
-	push {r4-r7,lr}
-	mov r7, r8
-	push {r7}
-	sub sp, 0x4
-	adds r5, r0, 0
-	lsls r1, 16
-	asrs r1, 16
-	adds r6, r1, 0
-	movs r0, 0x91
-	lsls r0, 3
-	adds r0, r5
-	mov r8, r0
-	cmp r1, 0
-	blt _080A3BD4
-	cmp r1, 0x1
-	ble _080A3BD4
-	cmp r1, 0x4
-	ble _080A3C00
-_080A3BD4:
-	ldr r1, _080A3BFC
-	adds r0, r5, r1
-	movs r1, 0x1
-	str r1, [r0]
-	movs r2, 0xA7
-	lsls r2, 3
-	adds r0, r5, r2
-	movs r1, 0
-	ldrsh r3, [r0, r1]
-	movs r0, 0
-	cmp r6, 0x1
-	bne _080A3BEE
-	movs r0, 0x1
-_080A3BEE:
-	str r0, [sp]
-	mov r0, r8
-	adds r1, r5, 0
-	movs r2, 0
-	bl sub_80A3D40
-	b _080A3C48
-	.align 2, 0
-_080A3BFC: .4byte 0x00000474
-_080A3C00:
-	ldr r2, _080A3C88
-	adds r0, r5, r2
-	movs r7, 0x2
-	str r7, [r0]
-	movs r0, 0xA7
-	lsls r0, 3
-	adds r4, r5, r0
-	movs r2, 0
-	ldrsh r0, [r4, r2]
-	subs r3, r0, 0x1
-	movs r0, 0
-	cmp r1, 0x4
-	bne _080A3C1C
-	movs r0, 0x1
-_080A3C1C:
-	str r0, [sp]
-	mov r0, r8
-	adds r1, r5, 0
-	movs r2, 0
-	bl sub_80A3D40
-	movs r1, 0x9B
-	lsls r1, 3
-	adds r0, r5, r1
-	movs r1, 0
-	ldrsh r2, [r4, r1]
-	subs r2, 0x1
-	adds r3, r7, 0
-	eors r3, r6
-	negs r1, r3
-	orrs r1, r3
-	lsrs r1, 31
-	str r1, [sp]
-	adds r1, r5, 0
-	movs r3, 0x1
-	bl sub_80A3D40
-_080A3C48:
-	movs r6, 0
-	ldr r2, _080A3C88
-	adds r0, r5, r2
-	ldr r0, [r0]
-	cmp r6, r0
-	bge _080A3CF0
-	movs r0, 0x8F
-	lsls r0, 3
-	adds r7, r5, r0
-	mov r4, r8
-_080A3C5C:
-	adds r0, r5, 0
-	adds r1, r6, 0
-	ldr r2, _080A3C8C
-	bl sub_80A456C
-	movs r1, 0x4
-	ldrsh r0, [r4, r1]
-	cmp r0, 0x1
-	beq _080A3C72
-	cmp r0, 0x2
-	beq _080A3CB4
-_080A3C72:
-	movs r2, 0
-	ldrsh r0, [r4, r2]
-	cmp r0, 0x1
-	beq _080A3C94
-	cmp r0, 0x1
-	ble _080A3C82
-	cmp r0, 0x2
-	beq _080A3C9C
-_080A3C82:
-	ldr r0, _080A3C90
-	b _080A3CD6
-	.align 2, 0
-_080A3C88: .4byte 0x00000474
-_080A3C8C: .4byte gUnknown_8117314
-_080A3C90: .4byte sub_80A3EBC
-_080A3C94:
-	ldr r0, _080A3C98
-	b _080A3CD6
-	.align 2, 0
-_080A3C98: .4byte sub_80A3EF4
-_080A3C9C:
-	ldrb r0, [r4, 0x6]
-	ldr r1, _080A3CAC
-	cmp r0, 0
-	beq _080A3CA6
-	ldr r1, _080A3CB0
-_080A3CA6:
-	str r1, [r4, 0x18]
-	b _080A3CD8
-	.align 2, 0
-_080A3CAC: .4byte sub_80A4088
-_080A3CB0: .4byte sub_80A41C4
-_080A3CB4:
-	movs r1, 0
-	ldrsh r0, [r4, r1]
-	cmp r0, 0x1
-	beq _080A3CCC
-	cmp r0, 0x1
-	ble _080A3CC4
-	cmp r0, 0x2
-	beq _080A3CD4
-_080A3CC4:
-	ldr r0, _080A3CC8
-	b _080A3CD6
-	.align 2, 0
-_080A3CC8: .4byte sub_80A3ED4
-_080A3CCC:
-	ldr r0, _080A3CD0
-	b _080A3CD6
-	.align 2, 0
-_080A3CD0: .4byte sub_80A3F94
-_080A3CD4:
-	ldr r0, _080A3D34
-_080A3CD6:
-	str r0, [r4, 0x18]
-_080A3CD8:
-	adds r0, r4, 0
-	adds r1, r7, 0
-	bl sub_80A3E14
-	adds r7, 0x8
-	adds r4, 0x50
-	adds r6, 0x1
-	ldr r2, _080A3D38
-	adds r0, r5, r2
-	ldr r0, [r0]
-	cmp r6, r0
-	blt _080A3C5C
-_080A3CF0:
-	ldr r1, _080A3D38
-	adds r0, r5, r1
-	ldr r6, [r0]
-	cmp r6, 0x1
-	bgt _080A3D26
-	lsls r0, r6, 2
-	adds r0, r6
-	lsls r0, 4
-	mov r2, r8
-	adds r4, r0, r2
-_080A3D04:
-	adds r0, r5, 0
-	adds r1, r6, 0
-	ldr r2, _080A3D3C
-	bl sub_80A456C
-	movs r0, 0
-	str r0, [sp]
-	adds r0, r4, 0
-	adds r1, r5, 0
-	movs r2, 0
-	movs r3, 0
-	bl sub_80A3D40
-	adds r4, 0x50
-	adds r6, 0x1
-	cmp r6, 0x1
-	ble _080A3D04
-_080A3D26:
-	add sp, 0x4
-	pop {r3}
-	mov r8, r3
-	pop {r4-r7}
-	pop {r0}
-	bx r0
-	.align 2, 0
-_080A3D34: .4byte sub_80A4358
-_080A3D38: .4byte 0x00000474
-_080A3D3C: .4byte gUnknown_8117314
-	thumb_func_end sub_80A3BB0
-
 	thumb_func_start sub_80A3D40
 sub_80A3D40:
 	push {r4-r7,lr}
diff --git a/include/ground_map.h b/include/ground_map.h
index 4ec83ee36..1e51acbb5 100644
--- a/include/ground_map.h
+++ b/include/ground_map.h
@@ -3,6 +3,7 @@
 
 #include "structs/str_file_system.h"
 #include "structs/str_202EE8C.h"
+#include "structs/str_position.h"
 
 typedef struct SubStruct_0
 {
@@ -31,9 +32,17 @@ typedef struct SubStruct_3E0
 
 typedef struct SubStruct_488
 {
-    u8 fill0[0x18];
+    s16 unk0;
+    u16 unk2;
+    s16 unk4;
+    u8 unk6;
+    s32 unk8;
+    s32 unkC;
+    s32 unk10;
+    s32 unk14;
     void (*unk18)(struct SubStruct_488 *);
-    u8 fill1C[0x84];
+    s32 unk1C;
+    u8 fill1C[0x30];
 } SubStruct_488;
 
 // size: 0x18?
@@ -68,6 +77,7 @@ typedef struct SubStruct_448
 #define UNK_0_ARR_COUNT 14
 #define UNK_E0_ARR_COUNT 32
 #define UNK_3E0_ARR_COUNT 2
+#define UNK_488_ARR_COUNT 2
 #define UNK_54C_ARR_COUNT 2
 #define UNK_545_UNK6_ARR_COUNT 4
 
@@ -99,8 +109,9 @@ typedef struct unkStruct_3001B70
     const void *unk46C;
     u8 unk470;
     u8 unk471;
-    u8 fill472[0x488-0x472];
-    struct SubStruct_488 unk488;
+    s32 unk474;
+    PixelPos unk478[UNK_488_ARR_COUNT];
+    struct SubStruct_488 unk488[UNK_488_ARR_COUNT];
     u16 unk528;
     u8 unk52A;
     SubStruct_52C unk52C;
diff --git a/src/code_80A26CC.c b/src/code_80A26CC.c
index eb4381a38..fc5711291 100644
--- a/src/code_80A26CC.c
+++ b/src/code_80A26CC.c
@@ -463,7 +463,7 @@ UNUSED static const u8 *sub_80A2B28(u16 r0)
     return sub_80A2B18(GetScriptVarValue(NULL, GROUND_PLACE));
 }
 
-// TODO: Figure out if a new file starts here
+// TODO: Figure out if a new file starts here. Edit: new file indeed starts here
 
 #include "ground_map.h"
 #include "text_1.h"
@@ -657,7 +657,7 @@ void sub_80A2E64(unkStruct_3001B70 *mapPtr)
     }
 
     sub_80A3BB0(mapPtr, 0);
-    sub_80A3EB0(&mapPtr->unk488);
+    sub_80A3EB0(mapPtr->unk488);
     mapPtr->unk52A = 1;
 }
 
@@ -859,7 +859,7 @@ void sub_80A2FBC(unkStruct_3001B70 *mapPtr, s32 a1_)
     }
 
     sub_80A3BB0(mapPtr, 0);
-    sub_80A3EB0(&mapPtr->unk488);
+    sub_80A3EB0(mapPtr->unk488);
     mapPtr->unk52A = 1;
 }
 
@@ -996,7 +996,7 @@ void sub_80A3440(unkStruct_3001B70 *mapPtr, s32 a1_, DungeonLocation *dungLoc, s
         sub3E0->unk24 = 0;
     }
     sub_80A3BB0(mapPtr, 0);
-    sub_80A3EB0(&mapPtr->unk488);
+    sub_80A3EB0(mapPtr->unk488);
     mapPtr->unk52A = 1;
     // bad sp alloc for compiler generated variables...
     ASM_MATCH_TRICK(mapPtr_454->unk6[0]);
@@ -1149,4 +1149,89 @@ const u8 *sub_80A3908(u16 **dstArray, const void *src_, SubStruct_52C *a2, SubSt
     return src;
 }
 
+void sub_80A3B80(unkStruct_3001B70 *mapPtr, u8 a1, u8 a2)
+{
+    if (mapPtr->unk46C != NULL) {
+        mapPtr->unk470 = a1;
+        mapPtr->unk471 = a2;
+    }
+}
+
+extern const PixelPos gUnknown_8117314;
+void sub_80A3D40(SubStruct_488 *a0, unkStruct_3001B70 *mapPtr, s32 a2, s32 a3, bool8 a4);
+void sub_80A3E14(SubStruct_488 *a0, PixelPos *a1);
+void sub_80A3EBC(SubStruct_488 *a0);
+void sub_80A3EF4(SubStruct_488 *a0);
+void sub_80A4088(SubStruct_488 *a0);
+void sub_80A41C4(SubStruct_488 *a0);
+void sub_80A3ED4(SubStruct_488 *a0);
+void sub_80A3F94(SubStruct_488 *a0);
+void sub_80A4358(SubStruct_488 *a0);
+
+void sub_80A3BB0(unkStruct_3001B70 *mapPtr, s32 a0_)
+{
+    s32 i;
+    // s16 memes strike yet again
+    s32 a0Match = (s16) a0_;
+    s32 a0 = a0Match;
+
+    SubStruct_488 *map488 = mapPtr->unk488;
+
+    switch (a0) {
+        default:
+        case 0:
+        case 1:
+            mapPtr->unk474 = 1;
+            sub_80A3D40(&map488[0], mapPtr, 0, mapPtr->unk52C.unkC, (a0 == 1));
+            break;
+        case 2:
+        case 3:
+        case 4:
+            mapPtr->unk474 = 2;
+            sub_80A3D40(&map488[0], mapPtr, 0, mapPtr->unk52C.unkC - 1, (a0 == 4));
+            sub_80A3D40(&map488[1], mapPtr, mapPtr->unk52C.unkC - 1, 1, (a0 != 2));
+            break;
+    }
+
+    for (i = 0; i < mapPtr->unk474; i++) {
+        sub_80A456C(mapPtr, i, &gUnknown_8117314);
+        switch (map488[i].unk4) {
+            default:
+            case 1:
+                switch (map488[i].unk0) {
+                    default:
+                    case 0:
+                        map488[i].unk18 = sub_80A3EBC;
+                        break;
+                    case 1:
+                        map488[i].unk18 = sub_80A3EF4;
+                        break;
+                    case 2:
+                        map488[i].unk18 = (map488[i].unk6 != 0) ? sub_80A41C4 : sub_80A4088;
+                        break;
+                }
+                break;
+            case 2:
+                switch (map488[i].unk0) {
+                    default:
+                    case 0:
+                        map488[i].unk18 = sub_80A3ED4;
+                        break;
+                    case 1:
+                        map488[i].unk18 = sub_80A3F94;
+                        break;
+                    case 2:
+                        map488[i].unk18 = sub_80A4358;
+                        break;
+                }
+                break;
+        }
+        sub_80A3E14(&map488[i], &mapPtr->unk478[i]);
+    }
+    for (i = mapPtr->unk474; i < UNK_488_ARR_COUNT; i++) {
+        sub_80A456C(mapPtr, i, &gUnknown_8117314);
+        sub_80A3D40(&map488[i], mapPtr, 0, 0, FALSE);
+    }
+}
+
 //