This club in Denver seems to be pretty active.
I still get this newsletter forwarded to me - there doesn't seem to be any real contact info in it, but they are AMA Club #790, and the email address is contained in this header:
_____________________________________________________________________
-----Original Message-----
From: Tony Livaudais <livaday@ecentral.com>
To: Tony Livaudais <livaday@ecentral.com>
Sent: Thu, Dec 1, 2016 01:05 PM
Subject: November issue
To All,
Happy Holidays
Tony Livaudais, Editor
THE PROBABLE CAUSE
Newsletter of the Rocky Mountain Aeromodelers
livaday@ecentral.com
(I had to compress the attachment to upload it here, so the graphics got lost).