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Events (63)
  • Apr
    17
    Cave Creek - Invasive Species Removal
    Apr 17, 2026 - (07:00 AM - 10:30 AM)
    Cave Creek Regional Park
    Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks.
    Event Details
  • Apr
    17
    Estrella - Invasive Species Removal
    Apr 17, 2026 - (07:00 AM - 10:30 AM)
    Estrella Mountain Regional Park
    Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks.
    Event Details
  • Apr
    17
    Plant Hike (Registration Required, Limit 20 Participants)
    Apr 17, 2026 - (07:30 AM - 10:00 AM)
    San Tan Mountain Regional Park
    Join Ranger Jacque on a moderate hike to search for and learn about a variety of flowering plant life, including wildflowers, shrubs, and cacti. Click program title for more
    details.
    Event Details
  • Apr
    17
    Plant Hike (Registration Required, Limit 20 participants)
    Apr 17, 2026 - (08:00 AM - 10:30 AM)
    Lake Pleasant Regional Park
    Join Ranger Nikki on a hike to see what’s growing and blooming in our beautiful Sonoran Desert. Click program title for more details.
    Event Details
  • Apr
    17
    Discovery Station: Connect with Nature through your Phone
    Apr 17, 2026 - (11:30 AM - 01:30 PM)
    San Tan Mountain Regional Park
    Stop by an information table where Ranger Jacque will teach you how to use
    your phone to identify and document your nature findings to help the scientific community. Citizen Science Month 2026 is an official partner of America 250, the campaign to celebrate the United States of America’s semiquincentennial anniversary. Click program title for more details.
    Event Details
  • Apr
    17
    City Nature Challenge Practice Hike (Registration Required, Limit 20 Participants)
    Apr 17, 2026 - (11:30 AM - 01:00 PM)
    Estrella Mountain Regional Park
    Learn about the April 24-27 City Nature Challenge and free smartphone apps that can help you identify plants, animals, and more, while helping contribute to science! Click on program title for more details.
    Event Details
  • Apr
    17
    Discovery Station: Be a Citizen Scientist!
    Apr 17, 2026 - (11:30 AM - 01:00 PM)
    Lake Pleasant Regional Park
    Stop by an information table where the Ranger will teach you how to use your phone to identify and document your nature findings to help the scientific community. Click program title for more details.
    Event Details
  • Apr
    18
    White Tank - Invasive Species Removal
    Apr 18, 2026 - (07:00 AM - 10:30 AM)
    White Tank Mountain Regional Park
    Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks.
    Event Details
  • Apr
    18
    Usery - Invasive Species Removal
    Apr 18, 2026 - (07:00 AM - 10:30 AM)
    Usery Mountain Regional Park
    Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks.
    Event Details
  • Apr
    18
    MTB Shift into the Weekend
    Apr 18, 2026 - (08:00 AM - 10:00 AM)
    San Tan Mountain Regional Park
    Event Details
  • Apr
    18
    Introduction to Archery (Limit 10 participants, Registration required)
    Apr 18, 2026 - (09:00 AM - 11:30 AM)
    Usery Mountain Regional Park
    Join Ranger Nikki and Park Staff to learn the fundamentals of Target Archery in a safe and fun outdoor environment. Click program title for more details.
    Event Details
  • Apr
    18
    Mesquite Festival
    Apr 18, 2026 - (09:00 AM - 01:00 PM)
    Hassayampa River Preserve
    Hassayampa River Preserve Mesquite Festival. Discover all the “Tree of Life” has to offer at this free, family-friendly community event. Click program title for more details.
    Event Details
  • Apr
    18
    Creatures of the Night Hike (Registration Required, Limit 10 Participants)
    Apr 18, 2026 - (06:00 PM - 08:00 PM)
    White Tank Mountain Regional Park
    Join Ranger Shaun for an early evening critter spotting mission! Click program title for more details.
    Event Details
  • Apr
    20
    Bird Meet Up
    Apr 20, 2026 - (08:30 AM - 09:30 AM)
    Usery Mountain Regional Park
    Drop in, no registration needed
    Event Details
  • Apr
    22
    McDowell - Invasive Species Removal
    Apr 22, 2026 - (07:00 AM - 10:30 AM)
    McDowell Mountain Regional Park
    Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks.
    Event Details
  • Apr
    22
    Desert 101 Hike
    Apr 22, 2026 - (07:00 AM - 09:00 AM)
    Lake Pleasant Regional Park
    Join Ranger Derik on a slow-paced walk along the lake and learn about the
    many animals and plants that call the park home. Click program title for more details.
    Event Details
  • Apr
    22
    White Tank - Invasive Species Removal
    Apr 22, 2026 - (07:00 AM - 10:30 AM)
    White Tank Mountain Regional Park
    Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks.
    Event Details
  • Apr
    22
    Estrella - Earth Day Desert Defenders Event
    Apr 22, 2026 - (07:00 AM - 10:30 AM)
    Estrella Mountain Regional Park
    This hands-on event features a variety of fun and meaningful projects—perfect for anyone who enjoys getting their hands dirty (or wearing gloves!).
    Event Details
  • Apr
    22
    Usery - Invasive Species Removal
    Apr 22, 2026 - (07:00 AM - 10:30 AM)
    Usery Mountain Regional Park
    Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks.
    Event Details
  • Apr
    22
    Discovery Station: What is the City Nature Challenge?
    Apr 22, 2026 - (09:00 AM - 12:00 PM)
    Lake Pleasant Regional Park
    Stop by an information table where Ranger Derik will teach you how to use
    your phone to identify and document your nature findings to help the scientific community. Click program title for more details
    Event Details
  • Apr
    22
    City Nature Challenge Practice Hike (Registration Required, Limit 20 Participants)
    Apr 22, 2026 - (11:30 AM - 01:00 PM)
    Estrella Mountain Regional Park
    Learn about the April 24-27 City Nature Challenge and free smartphone apps that can help you identify plants, animals, and more, while helping contribute to science! Click on program title for more details.
    Event Details
  • Apr
    22
    Lunch and Learn: Bat Basics (Registration required. Limit 30 Participants)
    Apr 22, 2026 - (12:00 PM - 01:00 PM)
    Usery Mountain Regional Park
    Join Ranger Kevin for a lunchtime look at one of the most amazing mammals on Earth – bats! Click program title for more details.
    Event Details
  • Apr
    22
    Discovery Station: Be a Citizen Scientist!
    Apr 22, 2026 - (01:30 PM - 03:00 PM)
    Usery Mountain Regional Park
    Stop by an information table where Ranger Kevin will teach you how to use your phone to identify and document your nature findings to help the scientific community. Click program title for more details.
    Event Details
  • Apr
    22
    "San Tan After Dark" Mountain Bike Ride
    Apr 22, 2026 - (06:00 PM - 08:00 PM)
    San Tan Mountain Regional Park
    Event Details
  • Apr
    23
    Guided Bird Walk (Registration Required, Limit 10 Participants)
    Apr 23, 2026 - (06:30 AM - 08:30 AM)
    White Tank Mountain Regional Park
    Learn about the birds of the Sonoran Desert on this easy, short bird walk with Ranger Eric. Click on program title for more details.
    Event Details
  • Apr
    23
    City Nature Challenge Practice Hike (Easy Level) (Registration Required, Limit 20 Participants)
    Apr 23, 2026 - (09:00 AM - 10:00 AM)
    White Tank Mountain Regional Park
    Learn about the April 24-27 City Nature Challenge and free smartphone apps that can help you identify plants, animals, and more, while helping contribute to science! Click on program title for more details.
    Event Details
  • Apr
    23
    City Nature Challenge Practice Hike (Moderate Difficulty) (Registration Required, Limit 20)
    Apr 23, 2026 - (10:30 AM - 12:30 PM)
    White Tank Mountain Regional Park
    Learn about the April 24-27 City Nature Challenge and free smartphone apps that can help you identify plants, animals, and more, while helping contribute to science! Click on program title for more details.
    Event Details
  • Apr
    24
    Guided Bird Hike (City Nature Challenge) (Registration Required, Limit 20 Participants)
    Apr 24, 2026 - (06:30 AM - 09:30 AM)
    Estrella Mountain Regional Park
    Learn about birds of the Sonoran Desert on this easy to moderate guided hike with Ranger Eric while participating in the City Nature Challenge! Click on program title for more details.
    Event Details
  • Apr
    24
    San Tan - Invasive Species Removal
    CANCELLED
    Apr 24, 2026 - (07:00 AM - 10:30 AM)
    San Tan Mountain Regional Park
    Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks.
    Event Details
  • Apr
    24
    City Nature Challenge Hike
    Apr 24, 2026 - (08:00 AM - 10:00 AM)
    Cave Creek Regional Park
    Join Ranger Nikki on an easy to moderate hike to use your phone to document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27. Click program title for more details.
    Event Details
  • Apr
    24
    Kayak to Castle Creek **Program full. Waiting list only.**
    Apr 24, 2026 - (10:00 AM - 01:00 PM)
    Lake Pleasant Regional Park
    Join Ranger Kevin for a leisurely morning paddle up Castle Creek. Click program title for more details.
    Event Details
  • Apr
    24
    City Nature Challenge Hike (Registration Required, Limit 20 Participants)
    Apr 24, 2026 - (10:00 AM - 12:00 PM)
    Estrella Mountain Regional Park
    Help with the April 24-27 City Nature Challenge and learn about the free smartphone app iNaturalist that can help you identify plants, animals, and more, while helping contribute to science! This hike accommodates both barrier-free (wheelchair-accessible) and more moderate difficulty trail grades for those that want to hike farther. Click on program title for more details.
    Event Details
  • Apr
    24
    Discovery Station: Join the City Nature Challenge
    Apr 24, 2026 - (10:30 AM - 12:00 PM)
    Cave Creek Regional Park
    Join Ranger Nikki to learn about this weekend’s City Nature Challenge April 24-27th and how your input can help the scientific community. Click program title for more details.
    Event Details
  • Apr
    24
    Sunset Hike (Registration Required, Limit 20 Participants)
    Apr 24, 2026 - (05:30 PM - 08:00 PM)
    Lake Pleasant Regional Park
    Join Ranger Kevin for a hike to the top of Yavapai Point. Click program title for more details.
    Event Details
  • Apr
    25
    Bird Walk with Tom Locascio (Registration Required, Limit 12 Participants)
    Apr 25, 2026 - (06:00 AM - 09:30 AM)
    White Tank Mountain Regional Park
    Join Park Volunteer Tom Locascio for a morning walk followed by an informational program in the Nature Center about the birds of White Tank Mountain Regional Park!
    Event Details
  • Apr
    25
    Estrella - Invasive Species Removal
    CANCELLED
    Apr 25, 2026 - (07:00 AM - 10:30 AM)
    Estrella Mountain Regional Park
    Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks.
    Event Details
  • Apr
    25
    Cave Creek - Invasive Species Removal
    Apr 25, 2026 - (07:00 AM - 10:30 AM)
    Cave Creek Regional Park
    Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks.
    Event Details
  • Apr
    25
    Usery - Invasive Species Removal
    CANCELLED
    Apr 25, 2026 - (07:00 AM - 10:30 AM)
    Usery Mountain Regional Park
    Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks.
    Event Details
  • Apr
    25
    City Nature Challenge Hike (Registration Required, Limit 20 Participants)
    Apr 25, 2026 - (07:00 AM - 12:00 PM)
    San Tan Mountain Regional Park
    Help document biodiversity of a scenic, under-visited part of the park while participating in the City Nature Challenge with Ranger Eric! The option to do a short vs. a longer hike will be available. Click on program title for more details.

    Event Details
  • Apr
    25
    White Tank - Invasive Species Removal
    CANCELLED
    Apr 25, 2026 - (07:00 AM - 10:30 AM)
    White Tank Mountain Regional Park
    Desert Defender volunteers needed! Join us in removing invasive species and reducing the wildfire risk in Maricopa County Regional Parks.
    Event Details
  • Apr
    25
    City Nature Challenge Hike
    Apr 25, 2026 - (07:30 AM - 09:15 AM)
    Usery Mountain Regional Park
    Join Ranger Jacque on a brief hike and use your phone to document
    biodiversity in the park for the City Nature Challenge global Citizen Science competition. Citizen Science Month 2026 is an official partner of America 250, the campaign to celebrate the United States of America’s semiquincentennial anniversary. Click program title for more details.
    Event Details
  • Apr
    25
    Lake Pleasant - Earth Day Clean-Up
    Apr 25, 2026 - (08:00 AM - 11:00 AM)
    Lake Pleasant Regional Park
    Event Details
  • Apr
    25
    City Nature Challenge Hike
    Apr 25, 2026 - (08:00 AM - 10:00 AM)
    Spur Cross Ranch Conservation Area
    Join Ranger Nikki on a moderate hike and use your phone to document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27. Click program title for more details.
    Event Details
  • Apr
    25
    Beginning Birders Hike (Registration Required, Limit 12 Participants)
    Apr 25, 2026 - (08:15 AM - 10:15 AM)
    Hassayampa River Preserve
    Join Ranger Kevin for an introduction to birding in one of Arizona’s premiere birding locations. Click program title for more details.
    Event Details
  • Apr
    25
    Discovery Station: Connect with Nature through your Phone
    Apr 25, 2026 - (10:00 AM - 12:00 PM)
    Usery Mountain Regional Park
    Stop by an information table where Ranger Jacque will teach you how to use
    your phone to identify and document your nature findings to help the scientific community. Citizen Science Month 2026 is an official partner of America 250, the campaign to celebrate the United States of America’s semiquincentennial anniversary. Click program title for more details.
    Event Details
  • Apr
    25
    City Nature Challenge Hike (Registration required, Limit 20 participants)
    Apr 25, 2026 - (10:30 AM - 12:00 PM)
    Hassayampa River Preserve
    Join Ranger Kevin to learn about and document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27th . Click program title for more details.
    Event Details
  • Apr
    25
    Discovery Station: Be a Citizen Scientist!
    Apr 25, 2026 - (01:00 PM - 02:30 PM)
    Hassayampa River Preserve
    Stop by an information table where Ranger Kevin will teach you how to use your phone to identify and document your nature findings to help the scientific community. Click program title for more details.
    Event Details
  • Apr
    26
    City Nature Challenge Hike
    Apr 26, 2026 - (08:00 AM - 10:00 AM)
    McDowell Mountain Regional Park
    Join Ranger Nikki on a moderate hike and use your phone to document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27. Click program title for more details.
    Event Details
  • Apr
    27
    Discovery Station: Be a Citizen Scientist!
    Apr 27, 2026 - (08:00 AM - 09:00 AM)
    Spur Cross Ranch Conservation Area
    Stop by an information table where Ranger Kevin will teach you how to use your phone to identify and document your nature findings to help the scientific community. Click program title for more details.
    Event Details
  • Apr
    27
    City Nature Challenge Hike (Registration required, Limit 20 participant
    Apr 27, 2026 - (09:00 AM - 10:30 AM)
    Spur Cross Ranch Conservation Area
    Join Ranger Kevin to learn about and document biodiversity in the park for the City Nature Challenge global Citizen Science competition that runs April 24-27th. Click program title for more details.
    Event Details
  • Apr
    28
    Discovery Station: Native Plants
    Apr 28, 2026 - (08:00 AM - 10:00 AM)
    Estrella Mountain Regional Park
    Join Ranger Olivia to see and learn about the different types of native plants
    that are in not just our parks, but in Arizona. Click on program title for more details.
    Event Details
  • Apr
    29
    APS Fishing Line Clean-Up
    Apr 29, 2026 - (07:00 AM - 10:00 AM)
    Lake Pleasant Regional Park
    The Avian and Wildlife Protection Program at APS will be holding a fishing line clean-up at Lake Pleasant. Please join us as we make the shoreline a safer place for all wildlife.
    Event Details
  • Apr
    29
    Guided Bird Walk (Registration Required, Limit 10 Participants)
    Apr 29, 2026 - (08:15 AM - 11:15 AM)
    Hassayampa River Preserve
    Learn about the resident and migrant birds of desert riparian areas on this guided walk with Ranger Eric. Click on program title for more details.
    Event Details
  • Apr
    29
    Discovery Station: Become a Junior Ranger
    Apr 29, 2026 - (02:00 PM - 04:00 PM)
    White Tank Mountain Regional Park
    Join Ranger Olivia to learn what being a Junior Ranger means, and how you
    can earn your badge today! Click on program title for more details.
    Event Details
  • Apr
    29
    Junior Ranger Hike (Registration Required, Limit 25 Participants)
    Apr 29, 2026 - (04:30 PM - 05:30 PM)
    White Tank Mountain Regional Park
    Bring your family and join Ranger Olivia on this slow-paced family friendly hike to become a Junior Ranger. Click program title for more details.
    Event Details
  • Apr
    29
    "San Tan After Dark" Mountain Bike Ride
    Apr 29, 2026 - (06:00 PM - 08:00 PM)
    San Tan Mountain Regional Park
    Event Details
  • Apr
    30
    Guided Bird Hike (Registration Required, Limit 10 Participants)
    Apr 30, 2026 - (06:30 AM - 09:30 AM)
    Lake Pleasant Regional Park
    Look for desert and migratory birds on this hike with Ranger Eric! Click on program title for details.
    Event Details
  • Apr
    30
    Native Plant Hike
    Apr 30, 2026 - (08:00 AM - 09:30 AM)
    San Tan Mountain Regional Park
    Celebrate the closing of Native Plant Month by spending the morning outside to learn all about the native plants of the Sonoran Desert during this guided plant hike with Ranger Olivia. Click program title for more details.
    Event Details
  • Apr
    30
    Native Plant Hike (Registration Required, Limit 20 Participants)
    Apr 30, 2026 - (08:00 AM - 09:30 AM)
    Cave Creek Regional Park
    Join Ranger Kevin for an informative hike about the native plants that call the Sonoran Desert home. Click program title for more details.
    Event Details
  • Apr
    30
    Discovery Station: Native Plants
    Apr 30, 2026 - (10:00 AM - 12:00 PM)
    San Tan Mountain Regional Park
    Join Ranger Olivia to see and learn about the different types of native plants that are in not just our parks, but in Arizona. Click on program title for more details.
    Event Details
  • Apr
    30
    Discovery Station: Be a Citizen Scientist!
    Apr 30, 2026 - (10:00 AM - 11:30 AM)
    Cave Creek Regional Park
    Stop by an information table where Ranger Kevin will teach you how to use your phone to identify and document your nature findings to help the scientific community. Click program title for more details.
    Event Details
  • Apr
    30
    Lunch and Learn: Bat Basics (Registration required. Limit 30 Participants)
    Apr 30, 2026 - (12:00 PM - 01:00 PM)
    Cave Creek Regional Park
    Join Ranger Kevin for a lunchtime look at one of the most amazing mammals on Earth – bats! Click program title for more details.
    Event Details
  • Apr
    30
    Creatures of the Night Hike (Full Moon) (Registration Required, Limit 20 Participants)
    Apr 30, 2026 - (06:00 PM - 08:00 PM)
    Lake Pleasant Regional Park
    Look for scorpions and other nocturnal critters on this hike with Ranger Eric! Click on program title for more details.
    Event Details

NOTICE: Accessibility & Accommodations
The County is committed to providing equal access to its programs, services, and activities.

To request a reasonable accommodation, auxiliary aid, service, or information in an alternative format, please contact the ADA Compliance Program at maricopacountyparks@maricopa.gov or 602.506.9500.

Requests related to public meetings should be made at least three (3) business days in advance when possible to allow time for coordination. 

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