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Outdoor activities

in Thornton, CO

Discover outdoor activities in Thornton with Meetup. Whatever your interest, Meetup helps you connect with like-minded people.

Hiking

Full moon NCAR Dinosaur Mountain hike

Sun, Dec 7 · 2:00 PM MST

Full moon NCAR Dinosaur Mountain hike

by Boulder CHAOS

Walk 360 Mini-Loop: South Urban Hike (last one!)

Sat, Dec 13 · 9:00 AM MST

Walk 360 Mini-Loop: South Urban Hike (last one!)

by Boulder Ramblers

Waterton Canyon Hike - Speed & Distance Your Choice

Mon, Dec 8 · 9:00 AM MST

Waterton Canyon Hike - Speed & Distance Your Choice

by Rise and Hike! Fit & Fun Weekday Hikers

Crown Lanes Bowling: $3.00 per Game for 50+

Wed, Dec 10 · 2:00 PM MST

Crown Lanes Bowling: $3.00 per Game for 50+

by Hikes Spikes Strikes and Bikes

Walking

Women Walking: Longmont

Fri, Dec 12 · 7:30 AM MST

Women Walking: Longmont

by Women Walking: Longmont

Arvada Walkers

Fri, Dec 12 · 6:30 AM MST

Arvada Walkers

by Arvada Walkers

Walk @ DMNS/City Park

Sat, Dec 20 · 1:30 PM MST

Walk @ DMNS/City Park

by Walking Adventurers

Walk @ Crestmoor Park

Sat, Dec 13 · 1:00 PM MST

Walk @ Crestmoor Park

by Walking Adventurers

Running

1st Run

Sat, Dec 13 · 8:30 AM MST

1st Run

by Just For Run: All body types, all ability levels Just start!

Run around City Park

Wed, Dec 10 · 6:30 PM MST

Run around City Park

by The Denver City Park Running Club

Monday 6pm Run in Washington Park, at the Recreation Center

Mon, Dec 8 · 6:00 PM MST

Monday 6pm Run in Washington Park, at the Recreation Center

by Colorado Achilles Runs

Denver Road Runners SUNDAY Dash & Dine

Sun, Dec 14 · 9:00 AM MST

Denver Road Runners SUNDAY Dash & Dine

by Denver Road Runners

Cycling

How to Tune Your Rear Derailleur (December 13th at noon)

Sat, Dec 13 · 12:00 PM MST

How to Tune Your Rear Derailleur (December 13th at noon)

by Boulder "Learn to Fix Your Bike" Group

MON. Clear Creek Trail/Prospect Park EAST to Totem Pole ~ 20.5 Miles, 10-15 mph

Mon, Dec 8 · 10:00 AM MST

MON. Clear Creek Trail/Prospect Park EAST to Totem Pole ~ 20.5 Miles, 10-15 mph

by WOMEN'S FUN BIKING/E-BIKING, WALKING & MORE!!

2:30 Start! SVCG Thursday Night Ride (SUNS) 2:30 pm!

Thu, Dec 11 · 2:30 PM MST

2:30 Start! SVCG Thursday Night Ride (SUNS) 2:30 pm!

by St Vrain Chain Gang Bicycling Club (SVCG) - Longmont, CO

Manitou Springs Incline - Weather Dependant

Sat, Dec 20 · 10:30 AM MST

Manitou Springs Incline - Weather Dependant

by 55+ Colorado Mountain Biking

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