diff --git a/include/openmc/mesh.h b/include/openmc/mesh.h
index 8494e8578c..29d1a0e4dd 100644
--- a/include/openmc/mesh.h
+++ b/include/openmc/mesh.h
@@ -356,6 +356,9 @@ intersect_track(const moab::CartVect& start,
   //! \param[in] all_tets MOAB Range of tetrahedra for the tree
   void build_kdtree(const moab::Range& all_tets);
 
+  std::pair<moab::Tag, moab::Tag>
+  get_score_tags(std::string score) const;
+
 public:
 
   std::pair<std::vector<double>, std::vector<double>>
@@ -388,6 +391,22 @@ public:
 
   std::string bin_label(int bin) const override;
 
+  //! Get the tags for a score from the mesh instance
+  moab::ErrorCode get_score_tags(std::string score,
+                                 moab::Tag& val_tag,
+                                 moab::Tag& err_tag) const;
+
+  //! Add a score to the mesh instance
+  void add_score(std::string score) const;
+
+  //! Set data for a score
+  void set_score(const std::string& score,
+                 int bin,
+                 double val,
+                 double err) const;
+
+  //! Write the mesh with any current tally data
+  void write(std::string base_filename) const;
   std::string filename_; //<! Path to unstructured mesh file
 
 private:
diff --git a/src/mesh.cpp b/src/mesh.cpp
index e9e56f787f..e7aaa59222 100644
--- a/src/mesh.cpp
+++ b/src/mesh.cpp
@@ -2013,6 +2013,108 @@ UnstructuredMesh::bin_label(int bin) const {
   return out.str();
 };
 
+moab::ErrorCode
+UnstructuredMesh::get_score_tags(std::string score,
+                                 moab::Tag& val_tag,
+                                 moab::Tag& err_tag) const {
+  moab::ErrorCode rval;
+  // add a tag to the mesh
+  // all scores are treated as a single value
+  // with an uncertainty
+  moab::Tag score_val;
+
+  double default_val = 0.0;
+  rval = mbi_->tag_get_handle(score.c_str(),
+                              1,
+                              moab::MB_TYPE_DOUBLE,
+                              score_val,
+                              moab::MB_TAG_DENSE|moab::MB_TAG_CREAT,
+                              &default_val);
+  if (rval != moab::MB_SUCCESS) {
+    std::stringstream msg;
+    msg << "Could not create or retrieve the value tag for the score " << score
+        << " on unstructured mesh " << id_;
+    warning(msg);
+    return rval;
+  }
+
+  moab::Tag score_err;
+  rval = mbi_->tag_get_handle(score.c_str(),
+                              1,
+                              moab::MB_TYPE_DOUBLE,
+                              score_err,
+                              moab::MB_TAG_DENSE|moab::MB_TAG_CREAT,
+                              &default_val);
+
+  if (rval != moab::MB_SUCCESS) {
+    std::stringstream msg;
+    msg << "Could not create or retrieve the error tag for the score " << score
+        << " on unstructured mesh " << id_;
+    warning(msg);
+    return rval;
+  }
+  return moab::MB_SUCCESS;
+}
+
+void
+UnstructuredMesh::add_score(std::string score) const {
+  moab::Tag score_val, score_err;
+  moab::ErrorCode rval = get_score_tags(score, score_val, score_err);
+  if (rval != moab::MB_SUCCESS) {
+    std::stringstream msg;
+    msg << "Failed to add score '" << score << "' to unstructured mesh" << id_;
+    fatal_error(msg);
+  }
+}
+
+void
+UnstructuredMesh::set_score(const std::string& score,
+                            int bin,
+                            double val,
+                            double err) const {
+  moab::Tag score_val, score_err;
+  moab::ErrorCode rval = get_score_tags(score, score_val, score_err);
+  if (rval != moab::MB_SUCCESS) {
+    std::stringstream msg;
+    msg << "Failed to get tags for the score '" << score << "' on "
+        << "unstructured mesh " << id_;
+    warning(msg);
+  }
+
+  moab::EntityHandle eh = get_ent_handle_from_bin(bin);
+
+  // set the score value
+  rval = mbi_->tag_set_data(score_val, &eh, 1, &val);
+  if (rval != moab::MB_SUCCESS) {
+    std::stringstream msg;
+    msg << "Failed to set the tally value for score '" << score << "' "
+        << " on unstructured mesh " << id_;
+    warning(msg);
+  }
+  // set the error value
+  rval = mbi_->tag_set_data(score_err, &eh, 1, &err);
+  if (rval != moab::MB_SUCCESS) {
+    std::stringstream msg;
+    msg << "Failed to set the tally value for score '" << score << "' "
+        << " on unstructured mesh " << id_;
+    warning(msg);
+  }
+}
+
+void
+UnstructuredMesh::write(std::string base_filename) const {
+  // add extension to the base name
+  base_filename += ".h5m";
+
+  moab::ErrorCode rval;
+  rval = mbi_->write_mesh(base_filename.c_str());
+  if (rval != moab::MB_SUCCESS) {
+    std::stringstream msg;
+    msg << "Failed to write unstructured mesh " << id_;
+    warning(msg);
+  }
+}
+
 #endif
 
 
diff --git a/src/tallies/tally.cpp b/src/tallies/tally.cpp
index b63128dc04..6a9c1455fd 100644
--- a/src/tallies/tally.cpp
+++ b/src/tallies/tally.cpp
@@ -831,6 +831,31 @@ void Tally::accumulate()
       }
     }
   }
+
+#ifdef DAGMC
+  for (auto filter_idx : filters_) {
+    auto& filter = model::tally_filters[filter_idx];
+    if (filter->type() == "mesh") {
+      auto mesh_filter = dynamic_cast<MeshFilter*>(filter.get());
+      auto& mesh = model::meshes[mesh_filter->mesh()];
+      auto umesh = dynamic_cast<UnstructuredMesh*>(mesh.get());
+      if (umesh) {
+        for (auto score : scores_) {
+          umesh->add_score(std::to_string(score));
+          for (int i = 0; i < results_.shape()[0]; i ++) {
+            umesh->set_score(std::to_string(score),
+                             i,
+                             results_(i, 0, RESULT_SUM),
+                             results_(i, 0, RESULT_SUM_SQ));
+          }
+        }
+        std::stringstream output_filename;
+        output_filename << "tally_" << id_ << "umesh";
+        umesh->write(output_filename.str());
+      }
+    }
+  }
+#endif
 }
 
 //==============================================================================