diff --git a/app/migrations/0040_alter_mountainrange_area.py b/app/migrations/0040_alter_mountainrange_area.py
new file mode 100644
index 0000000..8631ec1
--- /dev/null
+++ b/app/migrations/0040_alter_mountainrange_area.py
@@ -0,0 +1,18 @@
+# Generated by Django 3.2.5 on 2021-11-28 08:17
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('app', '0039_auto_20211128_0811'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='mountainrange',
+            name='area',
+            field=models.TextField(blank=True, null=True),
+        ),
+    ]
diff --git a/app/migrations/0041_auto_20211128_0823.py b/app/migrations/0041_auto_20211128_0823.py
new file mode 100644
index 0000000..f13207b
--- /dev/null
+++ b/app/migrations/0041_auto_20211128_0823.py
@@ -0,0 +1,23 @@
+# Generated by Django 3.2.5 on 2021-11-28 08:23
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('app', '0040_alter_mountainrange_area'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='mountainrange',
+            name='latitude',
+            field=models.DecimalField(blank=True, decimal_places=16, default=0, max_digits=22, null=True),
+        ),
+        migrations.AlterField(
+            model_name='mountainrange',
+            name='longitude',
+            field=models.DecimalField(blank=True, decimal_places=16, default=0, max_digits=22, null=True),
+        ),
+    ]
diff --git a/app/models.py b/app/models.py
index 61f9eda..331d25b 100644
--- a/app/models.py
+++ b/app/models.py
@@ -100,10 +100,10 @@ class MountainRange(models.Model):
     level_1 = models.TextField(blank=True, null=True)
     level_2 = models.TextField(blank=True, null=True)
     level_3 = models.TextField(blank=True, null=True)
-    latitude = models.CharField(blank=True, null=True, max_length=128)
-    longitude = models.CharField(blank=True, null=True, max_length=128)
+    latitude = models.DecimalField(max_digits=22, decimal_places=16, blank=True, null=True, default=0)
+    longitude = models.DecimalField(max_digits=22, decimal_places=16, blank=True, null=True, default=0)
     orogeny = models.TextField(blank=True, null=True)
-    area = models.FloatField(blank=True, null=True)
+    area = models.TextField(blank=True, null=True)
     GMBA_v1_id = models.CharField(blank=True, null=True, max_length=25)
     peak_elevation = models.TextField(blank=True, null=True)
     peak_name = models.TextField(blank=True, null=True)