To get an event listed in the calendar, send your information 14-21 days in advance to: OEcalendar@denverpost.com or fax 303-866-9004. Be sure to include a contact number. Items will run on a per-space basis.
CLIMBING
Today; Oct. 31
Climbing classes; for first-time or novice climbers with an introduction to basic sport-climbing procedures, terminology, technique and the proper use of equipment; at Denver REI store. rei.com
Saturday-Sunday
Basic tree climbing certification; learn the safe way to climb solo, including tree selection, rope handling, knots and more; ages 13 to adult; at South Platte Park; $345 to $450; 9 a.m. to 5:30 p.m. sspr.org or 303-347-5999
CYCLING
Mountain and road
Friday-Oct. 31
Canyonlands Mountain Bike Expedition with The Women’s Wilderness Institute; at Canyonlands National Park, Utah; $675, includes food and camping equipment. www.womenswilderness.org or 303-938-9191
Saturday
The 50/50 Race and Chet Peach BBQ; 50 miles of singletrack through Grand Valley, then 50 miles of road biking; pits mountain bike skills against road bike fitness; start at the Tabiguache trailhead, in Grand Junction; solo $50, two-person $80, four-person $150. otesports.com
Ongoing
Road rides each weekend in the south Denver area hosted by the Highlands Ranch Cycling Club; intermediate to advanced; two to five hours; helmet required; free. highlands-ranchcycling.com
Road bike rides every Saturday and Sunday along the Front Range, sponsored by Colorado HeartCycle; 20 to 100 miles; weather permitting; helmet required. heartcycle.org
Road bike rides; weekday evenings and every weekend along the Front Range; 25 to 125 miles; intermediate to advanced; helmet required, hosted by the Rocky Mountain Cycling Club. rmccrides.com
HIKING/BACKPACKING
Ongoing
Trail access, nordic walking, guided hikes and bird and nature walks; at the Adventure Center, in Broad Axe Barn, at Devil’s Thumb Ranch in Tabernash; 4,000 acres of wilderness and trails; $5 to $15; schedule varies. devilsthumbranch.com
RUNNING
Friday
Seventh annual Scream Scram 5K and 100-meter Spooky Sneak; and nordic walking; at Washington Park in Denver; runners, walkers and dogs welcome; costumes encouraged; $15 to $27; 5 p.m. screamagency.com
Saturday
Denver Gorilla Run 5K; at Wynkoop Brewing Company in Denver; benefits the Mountain Gorilla Conservation Fund; 11 a.m.; $45 to $150. denvergorillarun.com
24th annual Eerie Erie; 10K and 5K; at Erie Middle High School in Erie; $18 to $23; 9:30 a.m. optimistcluboferie.org
Sunday
Halloween Hustle 5K and quarter-mile Monster Dash; at Washington Park in Denver; $12 to $23; 9 a.m. bkbltd.com
Nov. 4
Harbert Lumber Fall Festival 5K; at the Grand Junction Botanical Gardens; benefit for “Girls on the Run,” $15; 9 a.m. 970-257-9267
Race of the Sentry; 5K race; sentry-pushup event; at Colorado State University oval, in Fort Collins; $15. 808-392-5355
Heart Center of the Rockies Half Marathon, 10K and 5K; at Boyd Lake State Park, in Loveland; $30-$35; 8:30 a.m. runnersroostftcollins.com
The Rock Slide Community Fun Run 5K and 1-mile; at Rock Canyon High School, in Castle Pines; 9 a.m. www.bkbltd.com or 303-694-2202
BSA 5K; at Bayfield High School, in Bayfield; 9 a.m. bsa5k.freewebspace.com or runscott@123mail.org
Nov. 11
Breckenridge Ale House Rim Rock Run; 22.5 miles (37K) gate to gate through the Colorado National Monument; also a prerace pasta banquet Nov. 10 at Mesa State College with featured speaker Susan Williams, bronze medalist in the Athens Olympics triathlon; 8 a.m. rimrockrun.org
2006 Crossfest; 8K, 5K and 3K; all ages; at Chatfield State Park; all courses are dirt trails, grass, bike path and have various obstacles to jump; $25 to $29; 9 a.m. eclecticedgeracing.com
Denison Montessori 5K Run for the Arts; adults and children; run/walk and 100-yard dash; at City Park, in Denver; $15-$25; 9 a.m. 303-964-8805
32nd annual Longmont Turkey Trot; at Westview Middle School, in Longmont; $18-$20; 9 a.m. ci.longmont.co.us
Seventh annual Parker Turkey Trot; in Parker; $20; 9 a.m. 303-874-028
Drumstick Dash 5K; in Leadville; $10-$20; 10 a.m. 719-860-092
Nov. 12
Fifth annual Panicking Poultry 5K Run/Walk for MS; at Boulder Reservoir, in Boulder; an out-and-back course on roadways and trails; solo $20-$30; team challenge $250; 9:30 a.m. 720-352-8934
Chi Omega’s Just Wish For It 5K Fun Run/Walk; at the University of Colorado, in Boulder; $15-$20; 10 a.m. colorado.edu/Greeks/ChiOmega
TTTS Race for Hope; 5K run/walk and kids fun run; at Washington Park, in Denver; $18-$25; 10 a.m. tttsraceforhope.org
Nov. 18
Strider “Tom Turkey” 6-mile prediction run; turkeys for those running closest to prerace predictions; in Grand Junction; 10:30 a.m. 970-243-3721
Dec. 2
Run For The Ages 15K; rolling course of bike paths and dirt trails; at Chatfield State Park; $25-$29; 9 a.m. 303-674-5446
TRAIL RUNNING
Saturday
Matchett Park Cross Country 5K (1K for kids); at Matchett Park in Grand Junction; course on farm roads and desert arroyo trails; 8:45 a.m. 970-254-FUNN
Nov. 5
Family Hike & Trail Race 6K in Cheyenne Canyon; follows the Columbine Trail up to Helen Hunt Falls; in Colorado Springs; $20-$25; $40 for families; 10 a.m. tfocc.org
LECTURES/CLASSES
Saturday
Learn GPS Family Camp; teach the basics of GPS usage; ages 7 and older; $60 per family includes rental of GPS receiver and three hours of instruction/exercises by GPS Discovery Adventures; 1-4 p.m. gpsdiscoveryadventures.com or 303-619-5252
Thursday; Nov. 2; Nov. 9
AQX Intelligent Training Deep Water Running Clinics; by Ric Rojas; clinics using specialized water running shoe; at the Elks Lodge swimming pool, in Boulder; $8 to $10; 6-7 p.m. ricrojasrunning.com
Nov. 10
Pre-Rimrock Run Banquet with Olympic triathlon bronze medalist Susan Williams; at Mesa State College Liff Auditorium; 6 p.m. rimrockrun.org or 970-243-4055
Nov. 24-26
Thanksgiving Nordic Ski Camp; at Devil’s Thumb Ranch in Tabernash; hosted by University of Denver nordic coach Wolf Wallendorf and former Subaru Factory Team skier Eric Meyer and several former NCAA skiers; covers technique coaching, video analysis and information about a wide range of ski topics to training and racing advice, wax clinics and on-snow skiing, among other topics; for all ability levels; $239 before Nov. 3, $279 after; registration closes Nov. 18. natronnordic.com or devilsthumbranch.com
Nov. 26
Orienteering for Grownups; regulated orienteering involves specialized, highly detailed, large-scale maps; uses regular USGS 7.5-minute quad topographic maps; accumulate points by finding locations on the ground using regular 1:24,000 topo maps in a set amount of time; also a map/terrain association class for beginners; 9 a.m. to 1 p.m.; free. 720-837-0074 or bill.campbell@rmc.sierraclub.org
MISCELLANEOUS
Monday
Divas in Drag; with Boarding for Breast Cancer and 2006 Olympic medalist Gretchen Bleiler; includes refreshments, appetizers, a silent auction, free massage tables and a fashion show of the women’s winter collection; in Boulder; $20 suggested donation; 6:30 p.m. outdoordivas.com
