diff --git a/topology/Fermi National Accelerator Laboratory/FermiGrid/FNALOSGRepoMirror.yaml b/topology/Fermi National Accelerator Laboratory/FermiGrid/FNALOSGRepoMirror.yaml
new file mode 100644
index 0000000000..a78d95cddb
--- /dev/null
+++ b/topology/Fermi National Accelerator Laboratory/FermiGrid/FNALOSGRepoMirror.yaml	
@@ -0,0 +1,17 @@
+Production: True
+SupportCenter: Community Support Center
+GroupDescription: OSG Yum Repositories miror at FNAL
+
+Resources:
+  FNAL-OSG-repo-mirror:
+    Active: true
+    Description: The FNAL mirror of the OSG yum repositories
+    ContactLists:
+      Administrative Contact:
+        Primary:
+          ID: 9ee3c5986e26fcbf82a16ea945d7aa98a612938e
+          Name: FNAL Service Desk
+    FQDN: linux-mirrors.fnal.gov
+    Services:
+      Software Repo Mirror:
+        Description: OSG Yum Repositories Mirror
diff --git a/topology/University of Chicago/UChicago/UChicagoOSGRepo.yaml b/topology/University of Chicago/UChicago/UChicagoOSGRepo.yaml
new file mode 100644
index 0000000000..68887081dd
--- /dev/null
+++ b/topology/University of Chicago/UChicago/UChicagoOSGRepo.yaml	
@@ -0,0 +1,48 @@
+Production: True
+SupportCenter: Self Supported
+GroupDescription: OSG Yum Repositories and miror at UChicago
+
+Resources:
+  UChicago-OSG-repo:
+    Active: true
+    Description: The UChicago instance of the OSG yum repositories
+    ContactLists:
+      Administrative Contact:
+        Primary:
+          ID: OSG1000016
+          Name: Judith Stephen
+        Secondary:
+          ID: OSG1000765
+          Name: David Jordan
+        Tertiary:
+          ID: OSG1000221
+          Name: Farnaz Golnaraghi
+    FQDN: repo.osg-htc.org
+    FQDNAliases:
+      - repo.opensciencegrid.org
+      - repo.osgprod.tempest.chtc.io
+      - repo-rsync.osg-htc.org
+      - repo-rsync.opensciencegrid.org
+      - repo-rsync.osgprod.tempest.chtc.io
+    Services:
+      Software Repo:
+        Description: OSG Yum Repositories
+
+  UChicago-OSG-repo-mirror:
+    Active: true
+    Description: The UChicago mirror of the OSG yum repositories
+    ContactLists:
+      Administrative Contact:
+        Primary:
+          ID: OSG1000016
+          Name: Judith Stephen
+        Secondary:
+          ID: OSG1000765
+          Name: David Jordan
+        Tertiary:
+          ID: OSG1000221
+          Name: Farnaz Golnaraghi
+    FQDN: mirror.grid.uchicago.edu
+    Services:
+      Software Repo Mirror:
+        Description: OSG Yum Repositories Mirror
diff --git a/topology/University of Nebraska/Nebraska-Lincoln/UNLOSGRepoMirror.yaml b/topology/University of Nebraska/Nebraska-Lincoln/UNLOSGRepoMirror.yaml
new file mode 100644
index 0000000000..18c0a8d87f
--- /dev/null
+++ b/topology/University of Nebraska/Nebraska-Lincoln/UNLOSGRepoMirror.yaml	
@@ -0,0 +1,20 @@
+Production: True
+SupportCenter: Community Support Center
+GroupDescription: OSG Yum Repositories mirror in Nebraska
+
+Resources:
+  Nebraska-OSG-repo-mirror:
+    Active: true
+    Description: The Nebraska mirror of the OSG yum repositories
+    ContactLists:
+      Administrative Contact:
+        Primary:
+          Name: John Thiltges
+          ID: OSG1000004
+        Secondary:
+          Name: Derek Weitzel
+          ID: OSG1000006
+    FQDN: t2.unl.edu
+    Services:
+      Software Repo Mirror:
+        Description: OSG Yum Repositories Mirror
diff --git "a/topology/University of Wisconsin\342\200\223Madison/CHTC/CHTCOSGRepo.yaml" "b/topology/University of Wisconsin\342\200\223Madison/CHTC/CHTCOSGRepo.yaml"
new file mode 100644
index 0000000000..0c5d7aa47a
--- /dev/null
+++ "b/topology/University of Wisconsin\342\200\223Madison/CHTC/CHTCOSGRepo.yaml"	
@@ -0,0 +1,39 @@
+Production: true
+SupportCenter: GLOW-TECH
+GroupDescription: OSG Yum Repositories at CHTC
+
+Resources:
+  CHTC-OSG-repo:
+    Active: true
+    Description: The CHTC instance of the OSG yum repositories
+    ContactLists:
+      Administrative Contact:
+        Primary:
+          Name: Matyas Selmeci
+          ID: OSG1000002
+        Secondary:
+          ID: OSG1000003
+          Name: Brian Hua Lin
+        Tertiary:
+           ID: OSG1000358
+           Name: MATTHEW WESTPHALL
+      Security Contact:
+        Primary:
+          Name: Matyas Selmeci
+          ID: OSG1000002
+        Secondary:
+          ID: OSG1000003
+          Name: Brian Hua Lin
+        Tertiary:
+           ID: OSG1000358
+           Name: MATTHEW WESTPHALL
+    FQDN: repo.osg-htc.org
+    FQDNAliases:
+      - repo.opensciencegrid.org
+      - repo.osg.chtc.io
+      - repo-rsync.osg-htc.org
+      - repo-rsync.opensciencegrid.org
+      - repo-rsync.osg.chtc.io
+    Services:
+      Software Repo:
+        Description: OSG Yum Repositories
diff --git "a/topology/University of Wisconsin\342\200\223Madison/GLOW/GLOWOSGRepoMirror.yaml" "b/topology/University of Wisconsin\342\200\223Madison/GLOW/GLOWOSGRepoMirror.yaml"
new file mode 100644
index 0000000000..20574cd122
--- /dev/null
+++ "b/topology/University of Wisconsin\342\200\223Madison/GLOW/GLOWOSGRepoMirror.yaml"	
@@ -0,0 +1,17 @@
+Production: True
+SupportCenter: USCMS_Tier2
+GroupDescription: OSG Yum Repositories miror at GLOW
+
+Resources:
+  GLOW-OSG-repo-mirror:
+    Active: true
+    Description: The GLOW mirror of the OSG yum repositories
+    ContactLists:
+      Administrative Contact:
+        Primary:
+          ID: 749a5ae92b94073b32c730fd3fddc5302a4dbbe5
+          Name: AJIT MOHAPATRA
+    FQDN: mirror.hep.wisc.edu
+    Services:
+      Software Repo Mirror:
+        Description: OSG Yum Repositories Mirror