diff --git a/Materials/regions/materials.xml b/Materials/regions/materials.xml
index 1ca1de2eb..6dc60b00b 100644
--- a/Materials/regions/materials.xml
+++ b/Materials/regions/materials.xml
@@ -1282,6 +1282,123 @@
   <tree-width-m>12.0</tree-width-m>
 </material>
 
+
+<!-- REGIONAL DEFINITIONS - SOUTH AMERICAN RAINFOREST BELT               -->
+
+
+<material include="Materials/regions/tropical_south_america.xml">
+  <name>EvergreenBroadCover</name>
+  <name>EvergreenForest</name>
+  <effect>Effects/forest</effect>
+ <texture-set>
+   <texture>Terrain/rainforest-hawaii.png</texture>
+   <texture n="11">Terrain/rainforest-hawaii.png</texture>
+   <texture n="12">Terrain/dirtrock.png</texture>
+   </texture-set>
+  <xsize>2000</xsize>
+  <ysize>2000</ysize>
+  <light-coverage>10000000.0</light-coverage>
+  <wood-coverage>4000.0</wood-coverage>
+  <tree-texture>Trees/tropical-summer.png</tree-texture>
+  <tree-varieties>8</tree-varieties>
+  <tree-range-m alias="/params/forest/tree-range-m"/>
+  <tree-height-m>35.0</tree-height-m>
+  <tree-width-m>30.0</tree-width-m>
+  <rolling-friction>1</rolling-friction>
+  <bumpiness>1</bumpiness>
+</material>
+
+
+<material include="Materials/regions/tropical_south_america.xml">
+  <name>HerbTundraCover</name>
+  <name>HerbTundra</name>
+  <effect>Effects/herbtundra</effect>
+  <texture-set>
+  <texture>Terrain/herbtundra.png</texture>
+  <texture n="11">Terrain/grass_hires.png</texture>
+  <texture n="12">Terrain/dirtrock.png</texture>
+  </texture-set>
+  <xsize>2000</xsize>
+  <ysize>2000</ysize>
+  <light-coverage>4000000.0</light-coverage>
+  <diffuse>
+   <r>0.93</r>
+   <g>0.95</g>
+   <b>0.93</b>
+   <a>1.0</a>
+  </diffuse>
+  <specular>
+   <r>0.1</r>
+   <g>0.12</g>
+   <b>0.1</b>
+   <a>1.0</a>
+  </specular>
+  <shininess>1.2</shininess>
+  <solid>1</solid>
+  <friction-factor>0.8</friction-factor>
+  <rolling-friction>0.1</rolling-friction>
+  <bumpiness>0.15</bumpiness>
+  <load-resistance>1e30</load-resistance>
+  <wood-coverage>70000.0</wood-coverage>
+  <tree-texture>Trees/tropical-summer.png</tree-texture>
+  <tree-varieties>8</tree-varieties>
+  <tree-range-m alias="/params/forest/tree-range-m"/>
+  <tree-height-m>25.0</tree-height-m>
+  <tree-width-m>18.0</tree-width-m>
+</material>
+
+<material include="Materials/regions/tropical_south_america.xml">
+  <name>MixedCropPastureCover</name>
+  <name>MixedCrop</name>
+  <name>ComplexCrop</name>
+ <texture-set>
+   <texture>Terrain/shrub1.png</texture>
+   <texture n="11">Terrain/grass_hires.png</texture>
+   <texture n="12">Terrain/dirtrock.png</texture>
+   </texture-set>
+  <xsize>2000</xsize>
+  <ysize>2000</ysize>
+  <light-coverage>2000000.0</light-coverage>
+  <solid>1</solid>
+  <friction-factor>0.9</friction-factor>
+  <rolling-friction>0.1</rolling-friction>
+  <bumpiness>0.7</bumpiness>
+  <load-resistance>1e30</load-resistance>
+  <wood-coverage>10000.0</wood-coverage>
+  <tree-texture>Trees/tropical-summer.png</tree-texture>
+  <tree-varieties>8</tree-varieties>
+  <tree-range-m alias="/params/forest/tree-range-m"/>
+  <tree-height-m>20.0</tree-height-m>
+  <tree-width-m>12.0</tree-width-m>
+</material>
+
+
+<material include="Materials/regions/tropical_south_america.xml">
+  <effect>Effects/crop</effect>
+  <name>DryCropPastureCover</name>
+  <name>DryCrop</name>
+  <texture-set>
+   <texture>Terrain/tundra-hawaii-green.png</texture>
+   <texture n="11">Terrain/grass_hires.png</texture>
+   <texture n="12">Terrain/dirtrock.png</texture>
+  </texture-set>
+  <xsize>2000</xsize>
+  <ysize>2000</ysize>
+  <solid>1</solid>
+  <friction-factor>0.9</friction-factor>
+  <rolling-friction>0.1</rolling-friction>
+  <bumpiness>0.6</bumpiness>
+  <load-resistance>1e30</load-resistance>
+  <light-coverage>2000000.0</light-coverage>
+  <wood-coverage>50000.0</wood-coverage>
+  <tree-texture>Trees/tropical-summer.png</tree-texture>
+  <tree-varieties>8</tree-varieties>
+  <tree-range-m alias="/params/forest/tree-range-m"/>
+  <tree-height-m>20.0</tree-height-m>
+  <tree-width-m>12.0</tree-width-m>
+</material>
+
+
 <!-- DEFAULT SUMMER DEFINITIONS                           -->
 
 <material>
@@ -1788,9 +1905,11 @@
   <name>MixedTundraCover</name>
   <name>Cemetery</name>
   <effect>Effects/landmass-nowood</effect>
-  <texture>Terrain/tundra.png</texture>
-  <texture>Terrain/tundra2.png</texture>
-  <texture>Terrain/tundra3.png</texture>
+  <texture-set>
+   <texture>Terrain/tundra-hawaii-green.png</texture>
+   <texture n="11">Terrain/rainforest-hawaii.png</texture>
+   <texture n="12">Terrain/dirtrock.png</texture>
+  </texture-set>
   <xsize>2000</xsize>
   <ysize>2000</ysize>
   <light-coverage>4000000.0</light-coverage>
diff --git a/Materials/regions/tropical_south_america.xml b/Materials/regions/tropical_south_america.xml
new file mode 100644
index 000000000..4258eddea
--- /dev/null
+++ b/Materials/regions/tropical_south_america.xml
@@ -0,0 +1,27 @@
+<?xml version="1.0"?>
+<!-- General settings for all tropical South American materials -->
+<PropertyList>
+  <!-- Define tropical South America as a box with given latitude/longitude -->
+  <condition>
+   <and>
+     <greater-than>
+      <property>position/longitude-deg</property>
+      <value>-90.0</value>
+     </greater-than>
+     <less-than>
+      <property>position/longitude-deg</property>
+      <value>-30.0</value>
+     </less-than>
+     <greater-than>
+      <property>position/latitude-deg</property>
+      <value>-15.0</value>
+     </greater-than>
+     <less-than>
+      <property>position/latitude-deg</property>
+      <value>15.0</value>
+     </less-than>
+   </and>
+  </condition>
+  
+  
+</PropertyList>