Maricopa County Park Alerts | Maricopa County Parks & Recreation

ESTRELLA - Rainbow Valley & Coldwater Trailhead Closure

The Rainbow Valley and Coldwater Trailheads will be CLOSED from February 3, 2025, through March 2027 to allow for the construction of a NEW 50 site campground with amenities. If the campground is completed earlier, the trailhead will be reopened.... more details

MARICOPA TRAIL - Segment 12 TEMPORARILY CLOSED - 10-8-2025 - 9-2026

Due to upcoming road widening work on North Lake Pleasant Parkway and trailhead realignment, Segment 12 will be temporarily closed. ... more details

LAKE PLEASANT: Annual Bald Eagle Closure - Agua Fria Arm - December 15 thru June 15

The arm of the Agua Fria River of Lake Pleasant will be closed for the annual bald eagle nesting season from December 15 thru June 15. Eagle closure buoys will be placed in the area warning boaters to keep out of the area. For more information about the program or maps of the closure area, please visit https://www.maricopacountyparks.net/park-locator/lake-pleasant-regional-park/park-information/bald-eagle-program/ or https://www.maricopacountyparks.net/assets/1/6/eagle-closure-areas-both.pdf.... more details

ESTRELLA - Tamarisk Invasive Species Removal events Jan 5 thru 31 and Feb 28 thru March 31

A map highlighting the area where Tamarisk removal events occurring January 5 thru 31 and February 28 thru March 31 will be occuring.ATTENTION: TAMARISK INVASIVE SPECIES REMOVAL JANUARY 5 - 31 AND FEBRUARY 28 - MARCH 31, 2026 Crews will be using hand equipment (wood chippers, chainsaws, and herbicide application) in the area at Estrella Mountain Regional Park to remove tamarisk trees and shrubs. The El-Rio parking lot will be closed during this time to allow the crews to do the work safe... more details

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LAKE PLEASANT - Special Event 10-lane East Parking lot Closed

Sunday February 1, 2026, the Annual Prickly Pedal Mountain Bike Race will be held. Finish for this Race will be the 10-lane East Parking lot area. Please be aware that Mountain bike riders, and runners will be utilizing the following trails: Beardsley, Wild Burro, Pipeline Canyon, Frog Tanks, Trails will have both runners and mountain bikers.... more details

SPUR CROSS: Invasive Species Treatment - Jan 26 - Feb 8

Professional ecological contractors will be treating the following areas within the conservation area for invasive species: TRAILS: Dragonfly Loop Trail, Boca Grande, and Cottonwood Creek SPECIES: Giant Reed, Buffelgrass, and Salt Cedar METHODS: Foliar Spot Application Herbicide Treatment Please avoid the area during this time. Questions? Contact the Natural Resource Specialist at (602) 506-9519 or (602) 506-2930.... more details

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WHITE TANK - Invasive Species Treatment - January 26 - February 15

Professional ecological contractors will be treating the following areas within the park for invasive species: TRAILS: Waterfall and Ford Canyon Trails as well as the adjacent washes SPECIES: Buffelgrass and Salt Cedar METHODS: Foliar Spot Application Herbicide Treatment or Cut Stump Please avoid the area during this time. Questions? Contact the Natural Resource Specialist at (602) 506-9519 or (602) 506-2930.... more details

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WHITE TANK - Invasive Species Treatment - Feb 16 - 19

WHITE TANK MOUNTAIN REGIONAL PARK INVASIVE SPECIES TREATMENT FEBRUARY 16 - FEBRUARY 19, 2026 Professional ecological contractors will be treating the following areas within the park for invasive species: TRAILS: Waddell, Gray Fox, and Ford Canyon Trails, as well as adjacent washes SPECIES: Annual Invasive Grasses and Stinknet METHODS: Foliar Spot Application Herbicide Treatment Please avoid the area during this time. Questions? Contact the Natural Resource Specialist at (602) 506-9519 or (602) 5... more details

White Tank Mountain Regional Park - Invasive Species Treatment February 16 - 19. Project details provided on page.

SPUR CROSS - Invasive Species Treatment Feb 16 - Feb 19

Professional ecological contractors will be treating the following areas within the conservation area for invasive species: TRAILS: Spur Cross, Metate, Fairy Duster, and Dragonfly Trails SPECIES: Annual Invasive Grasses, Stinknet and Invasive Perennials such as Mustards, Thistles, etc. METHODS: Foliar Spot Application Herbicide Treatment Please avoid the area during this time. Questions? Contact the Natural Resource Specialist at (602) 506-9519 or (602) 506-2930.... more details

Spur Cross Ranch Conservation Area - Invasive Species Treatment February 16 - 19. Project details provided on page.

USERY - Merkle and Vista Trails Temporarily Closed Feb 12 - Mar 5

From February 12–March 5, the Merkle and Vista Trails, and the associated trailhead parking lots, will be closed for an improvement project. Materials and equipment will occupy the area throughout the project. The project will focus on necessary repairs due to erosion damage from weather events. Repairs include additional culverts, tread replacement, water control basins, and rip-rap to mitigate the effects of water on the trail. ... more details

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