Please check out the calendars for the venues in your area. Plan on attending an hour before show-time to distribute literature, or try to find out what time the show will be ending and get there 20 minutes beforehand.
Colorado concert venues
Westword concert calendar http://music.westword.com/search/concerts.php
Colorado concert venues http://www.denverbouldermusic.com/venues.html
Sporting events
Denver Broncos @ Invesco Field http://www.denverbroncos.com/page.php?id=162
Colorado Avalanche @ Pepsi Center http://coloradoavalanche.com/Gameday/Schedule.aspx
Denver and surrounding areas
Gothic Theatre, 3263 S. Broadway, Denver CO
Bluebird Theatre - 3317 E. Colfax Ave., Denver CO
Ogden Theatre - 935 E. Colfax Ave., Denver CO
http://www.nipp.com/calendar/
Fillmore Auditorium - 1510 Clarkson St. http://www.livenation.com/venue/getVenue/venueId/1380/
Herman's Hideaway - 1578 S. Broadway http://www.hermanshideaway.com/index4.php
Paramount Theatre - 1621 Glenarm St. http://www.ticketmaster.com/venue/245776
Cervantes Masterpiece - 2637 Welton St.
Quixote's True Blue - 2637 Welton St.
Dulcinea's 100th Monkey - 717 E. Colfax Ave.
Sancho's Broken Arrow - 741 E. Colfax Ave		 http://quixotes.com/
Pepsi Center - 1000 Chopper Cir. http://www.ticketmaster.com/venue/246112
Aspen
Belly Up - 450 S. Galena St. http://www.bellyupaspen.com/audiocal.php
Wheeler Opera House - 320 East Hyman Avenue http://www.wheeleroperahouse.com/eventsList.cfm
Boulder
Boulder Theater - 2032 14th St. http://bouldertheater.com/
Fox Theatre - 1135 13th St. http://www.foxtheatre.com
Trilogy Wine Bar and Lounge - 2017 13th St http://www.trilogywinebar.com
Breckenridge
Sherpa & Yeti's - 320 S. Main St. http://www.sherpaandyetis.com/
Durango
Abbey Theatre - 128 E. College Ave. http://www.abbeytheatre.com/ index.cfm?fa=cContent.home&categoryId=3
The Summit - 600 Main Ave. http://www.durangosummit.com/
Fort Collins
Aggie Theater - 204 S. College Ave. http://aggietheater.com/october.shtml
Avogadro's Number - 605 S. Mason http://www.avogadros.com/
Grand Junction
Mesa Theater - 538 Main St.     http://www.mesatheater.com/
Loveland
Budweiser Events Center - 5290 Arena Circle http://www.co.larimer.co.us/theranch/bec/
Telluride
Sheridan Opera House - 268 Pacific Avenue http://www.sheridanoperahouse.com/pageinpage/events.cfm
Vail
8150 - 143 East Meadow Drive http://www.club8150.com/