We have the same thing on the Cincinnati section for Wright Patterson AFB.
This is only done to relieve some conjestion on the chart.

"Robert Easton" wrote in message
...
Does anybody know why on the Denver Terminal Area Chart, the Byers (BVR
113.5) vor/dme facility is charted without the compass ring that are on
most
vortacs? It's the only one I've seen charted like this. Byers is located
33NM on the 090 radial of DVV (the Denver International Vortac).

Thanks, Robert