I found the following information on the RPCNA web site. (The RPCNA is an a cappella Psalm singing denomination.)

Meeting Name: Springs Reformed Church
Meeting Address: 229 S. Weber St., Colorado Springs, CO, 80903, United States
Phone: 719-577-4157

There is an OPC congregation about mid way between Colorado Springs and Denver. (Check www.opc.org)

Soli Deo Gloria
John Schultz
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