Volunteer Flagstaff: Department Landing Page

City of Flagstaff

Welcome to the Parks, Recreation, Open Space & Events Division

Upcoming Activities Calendar

Volunteer	Invasive Weed Identification, Removal & Reseeding Wed 05/13, Wed 05/27, Wed 06/10, Wed 06/24, Wed 07/08, Wed 07/22, Wed 08/05, Wed 08/19, Wed 09/02 \| 07:00 AM \| Picture Canyon Natural & Cultural Preserve Come help us manage invasive weeds at Picture Canyon, to keep it the beautiful place that it is! Learn about invasive weeds, learn to identify them and the best ways to remove them, and help us spread native grass/flower seed to crowd out the inv... Co-Volunteers: Susan H 34 assignments unfilled more
Sign Up	Open Space Working Group meeting Wednesday, 12 August 2026 \| 10:30 AM \| White Dove Coffee Shop Come meet with Open Space Stewards, and get updates on Flagstaff Open Space's projects at Picture Canyon, McMillan Mesa, and Observatory Mesa Natural Preserves! more
Volunteer	Arbor Day tree planting! Tuesday, 25 August 2026 \| 08:00 AM \| Picture Canyon Natural & Cultural Preserve Arbor Day in Flagstaff is August 25th! (We know, National Arbor Day is in April, but that's a terrible time to plant a tree in Flagstaff.) Join Open Space and Audubon as we plant trees along the Rio de Flag at Picture Canyon! Wear sturdy shoes a... 25 assignments unfilled more
Sign Up	Full Moon Hike--Mars Hill Trail (meet at Thorpe Park dog park) Thursday, 27 August 2026 \| 06:15 PM \| Observatory Mesa - Mars Hill Trail PROSE - Open Space hosts a full moon walk (and sometimes bike ride) on one of our beautiful Open Space properties--a different spot each month. We start about a half-hour before the moon rises, walk on either a loop trail or out-and-back, and watc... more
Register	Mushroom Walk! Saturday, 29 August 2026 \| 11:30 AM \| Kachina Trail \| Registration Required Join mushroom enthusiasts for the AZ Watchable Wildlife Experience’s morning mushroom walk! We will gather folks, have an initial talk about mushrooms, related news and safety, and then hike-and-seek for an hour. “Basket checks” will be offered... more
Waitlist	Mushroom Walk! Saturday, 29 August 2026 \| 09:00 AM \| Kachina Trail \| Registration Required Join mushroom enthusiasts for the AZ Watchable Wildlife Experience’s afternoon mushroom walk! We will gather folks, have an initial talk about mushrooms, related news and safety, and then hike-and-seek for an hour. “Basket checks” will be offer... more
Sign Up	Full Moon Hike Saturday, 26 September 2026 \| 05:45 PM \| Picture Canyon Natural & Cultural Preserve PROSE - Open Space hosts a full moon walk (and sometimes bike ride) on one of our beautiful Open Space properties--a different spot each month. We start about a half-hour before the moon rises, walk on either a loop trail or out-and-back, and watc... more
Sign Up	Tarantula Trek! Sunday, 04 October 2026 \| 12:00 PM \| McMillan Mesa Natural Area Join Flagstaff Open Space for a kid-friendly Tarantula Trek, 12-2pm - where we'll explore a portion of the McMillan Mesa Loop Trail from Buffalo Park, and search for tarantulas along the way! Wear sturdy shoes, dress for the weather, and bring hi... more
Sign Up	Tarantula Trek! Sunday, 04 October 2026 \| 10:00 AM \| McMillan Mesa Natural Area Join Flagstaff Open Space for a kid-friendly Tarantula Trek, 10am-noon - where we'll explore a portion of the McMillan Mesa Loop Trail from Buffalo Park, and search for tarantulas along the way! Wear sturdy shoes, dress for the weather, and bring... more
Volunteer	Envoys - Trail Work, Water in SW, Nature Journaling Tuesday, 06 October 2026 \| 10:00 AM \| Picture Canyon Natural & Cultural Preserve Over 100 Envoys Travel students and chaperones come to Flagstaff to learn and do some service work. Open Space hosts half the group in the morning (10am-1pm) and the other half in the afternoon (2-5pm). Each group will be further split into 3 grou... 112 assignments unfilled more