diff --git a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/ApplicableRegionSet.java b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/ApplicableRegionSet.java
index 8a7a9dc2..67b10200 100644
--- a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/ApplicableRegionSet.java
+++ b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/ApplicableRegionSet.java
@@ -23,6 +23,8 @@
 import com.sk89q.worldguard.protection.association.RegionAssociable;
 import com.sk89q.worldguard.protection.flags.Flags;
 import com.sk89q.worldguard.protection.flags.Flag;
+import com.sk89q.worldguard.protection.flags.MapFlag;
+import com.sk89q.worldguard.protection.flags.RegionGroup;
 import com.sk89q.worldguard.protection.flags.StateFlag;
 import com.sk89q.worldguard.protection.flags.StateFlag.State;
 import com.sk89q.worldguard.protection.managers.RegionManager;
@@ -119,6 +121,28 @@ public interface ApplicableRegionSet extends Iterable<ProtectedRegion> {
     @Nullable
     <V> V queryValue(@Nullable RegionAssociable subject, Flag<V> flag);
 
+    /**
+     * Get the effective value for a key in a {@link MapFlag}. If there are multiple values
+     * (for example, if there are multiple regions with the same priority
+     * but with different farewell messages set, there would be multiple
+     * completing values), then the selected (or "winning") value will be undefined.
+     *
+     * <p>A subject can be provided that is used to determine whether the value
+     * of a flag on a particular region should be used. For example, if a
+     * flag's region group is set to {@link RegionGroup#MEMBERS} and the given
+     * subject is not a member, then the region would be skipped when
+     * querying that flag. If {@code null} is provided for the subject, then
+     * only flags that use {@link RegionGroup#ALL},
+     * {@link RegionGroup#NON_MEMBERS}, etc. will apply.</p>
+     *
+     * @param subject an optional subject, which would be used to determine the region group to apply
+     * @param flag the flag of type {@link MapFlag}
+     * @param key the key for the map flag
+     * @return a value, which could be {@code null}
+     */
+    @Nullable
+    <V, K> V queryMapValue(@Nullable RegionAssociable subject, MapFlag<K, V> flag, K key);
+
     /**
      * Get the effective values for a flag, returning a collection of all
      * values. It is up to the caller to determine which value, if any,
diff --git a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/FailedLoadRegionSet.java b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/FailedLoadRegionSet.java
index 452c516a..cef3f409 100644
--- a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/FailedLoadRegionSet.java
+++ b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/FailedLoadRegionSet.java
@@ -24,6 +24,7 @@
 import com.sk89q.worldguard.protection.association.RegionAssociable;
 import com.sk89q.worldguard.protection.flags.Flags;
 import com.sk89q.worldguard.protection.flags.Flag;
+import com.sk89q.worldguard.protection.flags.MapFlag;
 import com.sk89q.worldguard.protection.flags.StateFlag.State;
 import com.sk89q.worldguard.protection.regions.ProtectedRegion;
 
@@ -31,6 +32,7 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Iterator;
+import java.util.Map;
 import java.util.Set;
 
 /**
@@ -65,6 +67,13 @@ public <V> V queryValue(@Nullable RegionAssociable subject, Flag<V> flag) {
         return flag.getDefault();
     }
 
+    @Nullable
+    @Override
+    public <V, K> V queryMapValue(@Nullable RegionAssociable subject, MapFlag<K, V> flag, K key) {
+        Map<K, V> defaultVal = flag.getDefault();
+        return defaultVal != null ? defaultVal.get(key) : null;
+    }
+
     @SuppressWarnings("unchecked")
     @Override
     public <V> Collection<V> queryAllValues(@Nullable RegionAssociable subject, Flag<V> flag) {
diff --git a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/FlagValueCalculator.java b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/FlagValueCalculator.java
index 48c41316..caabb79e 100644
--- a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/FlagValueCalculator.java
+++ b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/FlagValueCalculator.java
@@ -26,6 +26,7 @@
 import com.sk89q.worldguard.protection.association.RegionAssociable;
 import com.sk89q.worldguard.protection.flags.Flags;
 import com.sk89q.worldguard.protection.flags.Flag;
+import com.sk89q.worldguard.protection.flags.MapFlag;
 import com.sk89q.worldguard.protection.flags.RegionGroup;
 import com.sk89q.worldguard.protection.flags.StateFlag;
 import com.sk89q.worldguard.protection.flags.StateFlag.State;
@@ -224,6 +225,93 @@ public <V> V queryValue(@Nullable RegionAssociable subject, Flag<V> flag) {
         return flag.chooseValue(values);
     }
 
+    /**
+     * Get the effective value for a key in a {@link MapFlag}. If there are multiple values
+     * (for example, if there are multiple regions with the same priority
+     * but with different farewell messages set, there would be multiple
+     * completing values), then the selected (or "winning") value will be undefined.
+     *
+     * <p>A subject can be provided that is used to determine whether the value
+     * of a flag on a particular region should be used. For example, if a
+     * flag's region group is set to {@link RegionGroup#MEMBERS} and the given
+     * subject is not a member, then the region would be skipped when
+     * querying that flag. If {@code null} is provided for the subject, then
+     * only flags that use {@link RegionGroup#ALL},
+     * {@link RegionGroup#NON_MEMBERS}, etc. will apply.</p>
+     *
+     * @param subject an optional subject, which would be used to determine the region group to apply
+     * @param flag the flag of type {@link MapFlag}
+     * @param key the key for the map flag
+     * @return a value, which could be {@code null}
+     */
+    @Nullable
+    public <V, T> V queryMapValue(@Nullable RegionAssociable subject, MapFlag<T, V> flag, T key) {
+        checkNotNull(flag);
+        checkNotNull(key);
+
+        V value = null;
+        int minimumPriority = Integer.MIN_VALUE;
+        Set<ProtectedRegion> ignoredParents = new HashSet<>();
+
+        for(ProtectedRegion region : getApplicable()) {
+            if (getPriority(region) < minimumPriority) {
+                break;
+            }
+
+            if (ignoredParents.contains(region)) {
+                continue;
+            }
+
+            V effectiveValue = getEffectiveMapValue(region, flag, key, subject);
+
+            if (effectiveValue != null) {
+                minimumPriority = getPriority(region);
+                value = effectiveValue;
+            }
+
+            addParents(ignoredParents, region);
+        }
+        return value;
+    }
+
+    @Nullable
+    private <V, T> V getEffectiveMapValue(ProtectedRegion region, MapFlag<T, V> mapFlag, T key, RegionAssociable subject) {
+        List<ProtectedRegion> seen = new ArrayList<>();
+        ProtectedRegion current = region;
+
+        while (current != null) {
+            seen.add(current);
+
+            Map<T, V> mapValue = current.getFlag(mapFlag);
+
+            if (mapValue != null && mapValue.containsKey(key)) {
+                boolean use = true;
+
+                if (mapFlag.getRegionGroupFlag() != null) {
+                    RegionGroup group = current.getFlag(mapFlag.getRegionGroupFlag());
+                    if (group == null) {
+                        group = mapFlag.getRegionGroupFlag().getDefault();
+                    }
+
+                    if (group == null) {
+                        use = false;
+                    } else if (subject == null) {
+                        use = group.contains(Association.NON_MEMBER);
+                    } else if (!group.contains(subject.getAssociation(seen))) {
+                        use = false;
+                    }
+                }
+
+                if (use) {
+                    return mapValue.get(key);
+                }
+            }
+
+            current = current.getParent();
+        }
+        return null;
+    }
+
     /**
      * Get the effective values for a flag, returning a collection of all
      * values. It is up to the caller to determine which value, if any,
diff --git a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/PermissiveRegionSet.java b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/PermissiveRegionSet.java
index 91dccc05..0ce29571 100644
--- a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/PermissiveRegionSet.java
+++ b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/PermissiveRegionSet.java
@@ -24,6 +24,7 @@
 import com.sk89q.worldguard.protection.association.RegionAssociable;
 import com.sk89q.worldguard.protection.flags.Flags;
 import com.sk89q.worldguard.protection.flags.Flag;
+import com.sk89q.worldguard.protection.flags.MapFlag;
 import com.sk89q.worldguard.protection.flags.StateFlag.State;
 import com.sk89q.worldguard.protection.regions.ProtectedRegion;
 
@@ -31,6 +32,7 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Iterator;
+import java.util.Map;
 import java.util.Set;
 
 /**
@@ -59,6 +61,13 @@ public <V> V queryValue(@Nullable RegionAssociable subject, Flag<V> flag) {
         return flag.getDefault();
     }
 
+    @Nullable
+    @Override
+    public <V, K> V queryMapValue(@Nullable RegionAssociable subject, MapFlag<K, V> flag, K key) {
+        Map<K, V> defaultVal = flag.getDefault();
+        return defaultVal != null ? defaultVal.get(key) : null;
+    }
+
     @SuppressWarnings("unchecked")
     @Override
     public <V> Collection<V> queryAllValues(@Nullable RegionAssociable subject, Flag<V> flag) {
diff --git a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/RegionResultSet.java b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/RegionResultSet.java
index ae868295..967d82cb 100644
--- a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/RegionResultSet.java
+++ b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/RegionResultSet.java
@@ -22,6 +22,7 @@
 import com.sk89q.worldguard.LocalPlayer;
 import com.sk89q.worldguard.protection.association.RegionAssociable;
 import com.sk89q.worldguard.protection.flags.Flag;
+import com.sk89q.worldguard.protection.flags.MapFlag;
 import com.sk89q.worldguard.protection.flags.StateFlag;
 import com.sk89q.worldguard.protection.flags.StateFlag.State;
 import com.sk89q.worldguard.protection.regions.ProtectedRegion;
@@ -108,6 +109,12 @@ public <V> Collection<V> queryAllValues(@Nullable RegionAssociable subject, Flag
         return flagValueCalculator.queryAllValues(subject, flag);
     }
 
+    @Override
+    @Nullable
+    public <V, K> V queryMapValue(@Nullable RegionAssociable subject, MapFlag<K, V> flag, K key) {
+        return flagValueCalculator.queryMapValue(subject, flag, key);
+    }
+
     @Override
     public boolean isOwnerOfAll(LocalPlayer player) {
         checkNotNull(player);
diff --git a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/regions/RegionQuery.java b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/regions/RegionQuery.java
index 59adb0c8..a3f24492 100644
--- a/worldguard-core/src/main/java/com/sk89q/worldguard/protection/regions/RegionQuery.java
+++ b/worldguard-core/src/main/java/com/sk89q/worldguard/protection/regions/RegionQuery.java
@@ -34,6 +34,8 @@
 import com.sk89q.worldguard.protection.association.RegionAssociable;
 import com.sk89q.worldguard.protection.flags.Flag;
 import com.sk89q.worldguard.protection.flags.Flags;
+import com.sk89q.worldguard.protection.flags.MapFlag;
+import com.sk89q.worldguard.protection.flags.RegionGroup;
 import com.sk89q.worldguard.protection.flags.StateFlag;
 import com.sk89q.worldguard.protection.flags.StateFlag.State;
 import com.sk89q.worldguard.protection.managers.RegionManager;
@@ -319,6 +321,30 @@ public <V> V queryValue(Location location, @Nullable RegionAssociable associable
         return getApplicableRegions(location).queryValue(associable, flag);
     }
 
+    /**
+     * Get the effective value for a key in a {@link MapFlag}. If there are multiple values
+     * (for example, if there are multiple regions with the same priority
+     * but with different farewell messages set, there would be multiple
+     * completing values), then the selected (or "winning") value will be undefined.
+     *
+     * <p>A subject can be provided that is used to determine whether the value
+     * of a flag on a particular region should be used. For example, if a
+     * flag's region group is set to {@link RegionGroup#MEMBERS} and the given
+     * subject is not a member, then the region would be skipped when
+     * querying that flag. If {@code null} is provided for the subject, then
+     * only flags that use {@link RegionGroup#ALL},
+     * {@link RegionGroup#NON_MEMBERS}, etc. will apply.</p>
+     *
+     * @param subject an optional subject, which would be used to determine the region group to apply
+     * @param flag the flag of type {@link MapFlag}
+     * @param key the key for the map flag
+     * @return a value, which could be {@code null}
+     */
+    @Nullable
+    public <V, K> V queryMapValue(Location location, @Nullable RegionAssociable subject, MapFlag<K, V> flag, K key) {
+        return getApplicableRegions(location).queryMapValue(subject, flag, key);
+    }
+
     /**
      * Get the effective values for a flag, returning a collection of all
      * values. It is up to the caller to determine which value, if any,