O'Neil Park

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Last Updated: December 5, 2025

O'Neil Park is a 10-acre park located in the city of Avondale, Arizona.


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Summary

The park offers various recreational activities such as basketball, volleyball, and playgrounds. The park is also equipped with picnic areas, BBQ grills, and restrooms. The park's main attraction is its splash pad, which is perfect for a hot Arizona day.

Visitors to O'Neil Park can also enjoy the surrounding areas, which include the Agua Fria River and Estrella Mountain Regional Park. The Agua Fria River offers hiking and fishing opportunities, while Estrella Mountain Regional Park features over 33 miles of trails for hiking, biking, and horseback riding.

Interesting facts about the area include O'Neil Park being named after the O'Neil family, who were early settlers in Avondale. The park was opened in 2009 and is one of the newest parks in the city. Additionally, Avondale is located in Maricopa County, which is the fastest-growing county in the United States.

The best time of year to visit O'Neil Park is during the fall and winter months when temperatures are cooler. The park is open year-round, but visitors should be aware that temperatures can reach well over 100 degrees Fahrenheit during the summer months.

Overall, O'Neil Park offers a great opportunity for families and outdoor enthusiasts to enjoy a day out in the beautiful Arizona weather with plenty of amenities and activities to suit all ages.

       

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Park & Land Designation Reference

National Park
Large protected natural areas managed by the federal government to preserve significant landscapes, ecosystems, and cultural resources; recreation is allowed but conservation is the priority.
State Park
Public natural or recreational areas managed by a state government, typically smaller than national parks and focused on regional natural features, recreation, and education.
Local Park
Community-level parks managed by cities or counties, emphasizing recreation, playgrounds, sports, and green space close to populated areas.
Wilderness Area
The highest level of land protection in the U.S.; designated areas where nature is left essentially untouched, with no roads, structures, or motorized access permitted.
National Recreation Area
Areas set aside primarily for outdoor recreation (boating, hiking, fishing), often around reservoirs, rivers, or scenic landscapes; may allow more development.
National Conservation Area (BLM)
BLM-managed areas with special ecological, cultural, or scientific value; more protection than typical BLM land but less strict than Wilderness Areas.
State Forest
State-managed forests focused on habitat, watershed, recreation, and sustainable timber harvest.
National Forest
Federally managed lands focused on multiple use—recreation, wildlife habitat, watershed protection, and resource extraction (like timber)—unlike the stricter protections of national parks.
Wilderness
A protected area set aside to conserve specific resources—such as wildlife, habitats, or scientific features—with regulations varying widely depending on the managing agency and purpose.
Bureau of Land Management (BLM) Land
Vast federal lands managed for mixed use—recreation, grazing, mining, conservation—with fewer restrictions than national parks or forests.
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