tonight starts the summer concert schedule at red rocks , which provides for some interesting monitoring. all are afs format and were in use last year and were heard at 15:00 hours today on the denver public works edacs system. 10.063 -command post for security and medical calls. 10 -096 . 10-064 ops. 10-066 cleanup. 10-061. 10-067 parking 10-062 and 10-065 and 10-052 security. a correction some but not all were heard. i checked the lakewood system which has talkgroups listed in the database, but heard nothing.