Stage 1 Fire Restrictions are in effect for the mountain and foothill areas of Boulder County.

Boulder County government offices closed Friday, June 19, in observance of Juneteenth

Red Flag Warning for Wednesday, June 17. No open burning in Boulder County.

Hikes and Events Open Space Calendar

Hikes and Events Open Space Calendar

Enjoy group-led hikes, indoor programs, special events, seniors hikes, kids programs, and other Parks & Open Space meetings.

Loading...

Calendar of Events

Sunday
Monday
Tuesday
Wednesday
Thursday
Friday
Saturday
0 events,
0 events,
0 events,
0 events,
0 events,

1 event,

-

3 events,

-
-
-
0 events,

1 event,

-

1 event,

Virtual Event
-
0 events,

1 event,

-

2 events,

-
-

2 events,

-
-

1 event,

-
0 events,

2 events,

Virtual Event
-
-
0 events,
0 events,

1 event,

-

3 events,

-
-
-
0 events,
0 events,
0 events,
0 events,

1 event,

-

1 event,

-

2 events,

-
-

1 event,

-
0 events,
0 events,
0 events,
0 events,
0 events,
0 events,
Loading...

Astronomy: Exploring Other Worlds

Lafayette Public Library 775 Baseline Rd, Lafayette, CO

Astronomy: A Celestial Meet-Up of Venus and Jupiter

Ron Stewart Preserve at Rabbit Mountain 14950 N. 55th St., Longmont, CO

Hammering on the Farm

Agricultural Heritage Center 8348 Ute Hwy, Longmont, CO

Boulder County Flora, Fauna, and People: Past, Present and Future (1720-2120)

Pella Crossing 11600 N. 75th St., Longmont, CO

Assay Office Museum Open House

Assay Office Museum 6352 Fourmile Canyon Dr, Boulder, CO

Hikes for Seniors: Welcoming Summer

Pella Crossing 11600 N. 75th St., Longmont, CO

Fun on the Farm: Busy Bees and Butterflies

Agricultural Heritage Center 8348 Ute Hwy, Longmont, CO

Pride in the Parks: Birding the Foothills

Gold Panning

Nederland Mining Museum 200 N. Bridge Street, Nederland, CO

Discover Rabbit Mountain

Ron Stewart Preserve at Rabbit Mountain 14950 N. 55th St., Longmont, CO

Hard Rock Mining Van Tour

Nederland Mining Museum 200 N. Bridge Street, Nederland, CO

Fun on the Farm: Little Lambs

Agricultural Heritage Center 8348 Ute Hwy, Longmont, CO

Important

  • Registration is handled through Discover Boulder County, Parks & Open Space’s volunteer and event registration system.
  • Registration for most programs begins on the 20th of the month before the event.
  • All ages are welcome unless otherwise noted.
  • Pets are not allowed.
  • Volunteer projects are listed on the Volunteer Opportunities page.

Boulder County wants to ensure that everyone has equal access to our programs, activities, and services. To request an Americans with Disability Act (ADA) accommodation, please email ada@bouldercounty.gov, or call 303-441-1386. Submit your request as early as possible, and no later than two business days before the event.

If you need help in another language, please email posinfo@bouldercounty.gov, or call 303-678-6277. Contact us as early as possible, and no later than three business days before the event.

Sign Up for Updates

Sign up to receive email or text updates for upcoming group-led hikes, special events, kids programs, seniors hikes, and other programs with Parks & Open Space.

Sign Up for Hikes and Events Updates

Contact Us

Parks & Open Space

303-678-6200
8 a.m. - 4:30 p.m.
Monday-Friday

Office Location

5201 St. Vrain Road
Longmont, CO 80503

Office Hours

8 a.m. - 4:30 p.m.
Monday-Thursday
Friday by phone, email, or appointment only.

Parks are open sunrise to sunset

Connect With Us