• , Communications Volunteer Coordinator
  • , Radio Repeaters
  • , Digital Communications Plan

Amateur radio has been an integral part of the Hardrock 100 since it was first run in 1992. For the first few runs, Colorado hams placed portable repeaters or sat in their four-wheel drive autos on high locations providing cross band repeating into run headquarters in Silverton. Several years ago, KC5CHM and KB5ITS with the help from area hams, placed two permanent repeaters on peaks in the run area that provide good coverage for the run.

Frequency List - Updated 2/29/24
Communications Manual - Updated 5/30/24

Runners are tracked, timed actually, in and out of each aid station. Their progress is radioed back to headquarters. Runner times are plotted and when runners become overdue, searchers can be sent out.

Communication Logging Sheets

Aid Station Logging Sheet
This is the logging form you should use. It's formatted to simplify transmission of runners' number to headquarters in Silverton.

Headquarters Logging Sheet
Use this form for logging data at headquarters.

Communications Finish Logging Sheet
Use this form for logging finisher's times.

Aid Station Open/Close Time Chart - Clockwise.


  • Buffalo Boy Ridge Node
    From Chris Depuy: "It took Chuck Kimball, my main man, and I all day to install that radio, sitting at 13,000 feet on the Buffalo Boy Ridge, up where the wind can blow, and clouds heavy with static drop lightning bolts all over that San Juan range. We installed in the fall of 2009, and it has run flawlessly for us and we haven't been blown off the air by lightning, nor the tower torn to shreds by wild winds, yes we are very lucky and I am proud of the important job that little radio will do for this fantastic run!!!"
  • Kendall Mountain repeater (1.6MB) by Harley Murry KC5CHM
  • Engineer Mountain repeater (134k) by Harley Murry KC5CHM