diff --git a/src/main/java/gov/usgs/earthquake/nshmp/model/ModelLoader.java b/src/main/java/gov/usgs/earthquake/nshmp/model/ModelLoader.java
index a99e23e91740ebb9336d064dfdc4273dad84ffe7..07e175f375f46106a32baa38f45571ff56a195ba 100644
--- a/src/main/java/gov/usgs/earthquake/nshmp/model/ModelLoader.java
+++ b/src/main/java/gov/usgs/earthquake/nshmp/model/ModelLoader.java
@@ -1212,7 +1212,7 @@ abstract class ModelLoader {
           Path.of(feature.name));
 
       SourceTree tree = SourceTree.builder()
-          .path(geojson.getParent())
+          .path(checkNotNull(geojson.getParent()))
           .name(feature.name)
           .id(feature.id)
           .setting(data.tectonicSetting())
diff --git a/src/main/java/gov/usgs/earthquake/nshmp/model/Models.java b/src/main/java/gov/usgs/earthquake/nshmp/model/Models.java
index 648c91c0a73308af40d092791c99348dcdc24f24..5f9b8a6bce7726cb79091acfbfc91a74721e35d1 100644
--- a/src/main/java/gov/usgs/earthquake/nshmp/model/Models.java
+++ b/src/main/java/gov/usgs/earthquake/nshmp/model/Models.java
@@ -68,7 +68,8 @@ public class Models {
     // System.out.println(GSON.toJson(tree(model, 8309))); // UCERF3
     // System.out.println(GSON.toJson(tree(model, 8129))); // UCERF3 grid
 
-    System.out.println(GSON.toJson(tree(model, 2591)));
+    // System.out.println(GSON.toJson(tree(model, 2591))); // Stonewall Ant.
+    System.out.println(GSON.toJson(tree(model, 2535))); // Steens
 
   }
 
@@ -222,7 +223,7 @@ public class Models {
   }
 
   static final class MfdBranch {
-    final String id;
+    final String id; // TODO change to name
     final double weight;
     final Mfd mfd;