diff --git a/.travis.yml b/.travis.yml
index dac2c6af..e31b94e3 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,7 +4,7 @@ python:
 
 # Setup anaconda
 before_install:
-  - if [ ${TRAVIS_PYTHON_VERSION:0:1} == "2" ]; then wget http://repo.continuum.io/miniconda/Miniconda-3.3.0-Linux-x86_64.sh -O miniconda.sh; else wget http://repo.continuum.io/miniconda/Miniconda3-3.3.0-Linux-x86_64.sh -O miniconda.sh; fi
+  - if [ ${TRAVIS_PYTHON_VERSION:0:1} == "2" ]; then wget http://repo.continuum.io/miniconda/Miniconda-3.8.3-Linux-x86_64.sh -O miniconda.sh; else wget http://repo.continuum.io/miniconda/Miniconda3-3.8.3-Linux-x86_64.sh -O miniconda.sh; fi
   - chmod +x miniconda.sh
   - ./miniconda.sh -b
   - export PATH=/home/travis/anaconda/bin:/home/travis/miniconda/bin:$PATH
diff --git a/SimPEG/Maps.py b/SimPEG/Maps.py
index 4ab1d855..0b47de66 100644
--- a/SimPEG/Maps.py
+++ b/SimPEG/Maps.py
@@ -229,16 +229,16 @@ class LogMap(IdentityMap):
 
         ..math::
 
-            p = \\log(m) 
+            p = \\log(m)
 
-        and 
+        and
 
         ..math::
 
             m = \\exp(p)
 
         NOTE: If you have a model which is log conductivity (ie. \\(m = \\log(\\sigma)\\)),
-        you should be using an ExpMap 
+        you should be using an ExpMap
 
     """
 
diff --git a/SimPEG/Mesh/CylMesh.py b/SimPEG/Mesh/CylMesh.py
index 93cd5451..8d2b1ae8 100644
--- a/SimPEG/Mesh/CylMesh.py
+++ b/SimPEG/Mesh/CylMesh.py
@@ -11,6 +11,10 @@ class CylMesh(BaseTensorMesh, InnerProducts, CylView):
     """
         CylMesh is a mesh class for cylindrical problems
 
+        .. note::
+
+            for a cylindrically symmetric mesh use [hx, 1, hz]
+
         ::
 
             cs, nc, npad = 20., 30, 8
@@ -25,8 +29,10 @@ class CylMesh(BaseTensorMesh, InnerProducts, CylView):
 
     def __init__(self, h, x0=None):
         BaseTensorMesh.__init__(self, h, x0)
-        assert self.dim == 3, "dim of mesh must equal 3, for a cylindrically symmetric mesh use [hx, 1, hz]"
         assert self.hy.sum() == 2*np.pi, "The 2nd dimension must sum to 2*pi"
+        if self.dim == 2:
+            print 'Warning, a disk mesh has not been tested thoroughly.'
+
 
     @property
     def isSymmetric(self):
@@ -278,6 +284,18 @@ class CylMesh(BaseTensorMesh, InnerProducts, CylView):
                 #                                   kron3(speye(n[2]), av(n[1]), av(n[0]))), format="csr")
         return self._aveE2CC
 
+    @property
+    def aveE2CCV(self):
+        "Construct the averaging operator on cell edges to cell centers."
+        if getattr(self, '_aveE2CCV', None) is None:
+            # The number of cell centers in each direction
+            n = self.vnC
+            if self.isSymmetric:
+                return self.aveE2CC
+            else:
+                raise NotImplementedError('wrapping in the averaging is not yet implemented')
+        return self._aveE2CCV
+
 
     @property
     def aveF2CC(self):
@@ -295,6 +313,20 @@ class CylMesh(BaseTensorMesh, InnerProducts, CylView):
                 #                                    kron3(av(n[2]), speye(n[1]), speye(n[0]))), format="csr")
         return self._aveF2CC
 
+    @property
+    def aveF2CCV(self):
+        "Construct the averaging operator on cell faces to cell centers."
+        if getattr(self, '_aveF2CCV', None) is None:
+            n = self.vnC
+            if self.isSymmetric:
+                avR = av(n[0])[:,1:]
+                avR[0,0] = 1.
+                self._aveF2CCV = sp.block_diag((sp.kron(speye(n[2]), avR),
+                                                sp.kron(av(n[2]), speye(n[0]))), format="csr")
+            else:
+                raise NotImplementedError('wrapping in the averaging is not yet implemented')
+        return self._aveF2CCV
+
 
 if __name__ == '__main__':