What are the biggest city parks in the US?

Search: parks in city limits; central park; urban parks

Why: I don't know who planted this seed in my head, but for some reason, I thought Shelby Farms in Memphis was #2, right after Central Park. But I already cheated and read this:

At a size of 4,500 acres (18 km²), it covers more than five times the area of Central Park in New York City with 843 acres (3.41 km²).

So beautiful.

Answer: Here are some:

1. El Paso, TX - Franklin Mountains State Park (23,909 acres / 96.76 km²)
2. New Orleans, LA - Bayou Sauvage National Wildlife Refuge (22,770 acres / 92.1 km²)
3. Phoenix, AZ - State Mountain Park (16,094 acres / 65.13 km²)
4. Scottsdale, AZ - McDowell Sonoran Preserve (11, 250 acres / 45.5 km²)
5. Houston, TX - Cullen Park (9,270 acres / 37. 5 km²)
6. Los Angeles, CA - Topanga State Park (8,960 acres / 36.3 km²)
7. Jacksonville, FL - Timucuan Ecological and Historic Preserve (7,870 acres)
8. Houston, TX - George Bush Park (7,800 acres / 32 km²)
9. Phoenix, AZ - North Mountain Preserve (7,500 acres / 30 km²)
10. New York, NY - Gateway National Recreation Area (7,138 acres / 28.89 km²)
11. San Jose, CA - Don Edwards San Francisco Bay National Wildlife Refuge (6,800 / 28 km²)
12. Louisville, KY - Jefferson Memorial Forest (6,011 acres / 24.33 km²)
13. Eufaula, AL - Eufaula National Wildlife Refuge (6,000 acres / 24 km²)
14. San Diego, CA - Mission Trails Regional Park (5,840 acres / 23.6 km²)
15. Raleigh, NC - William B. Umstead State Park (5,579 acres / 22.58 km²)
16. Honolulu, HI - Ahupua'a O Kahana State Park (5,229 acres / 21.16 km²)
17. Portland, OR - Forest Park (5,157 acres / 20.87 km²)
18. Indianapolis, IN - Eagle Creek Park and Golf Course (4,766 acres / 19.29 km²)
19. Memphis, TN - Shelby Farms (4,500 acres / 18 km²)
20. Anchorage, AK - Far North Bicentennial Park (4,500 acres / 18 km²)
21. Los Angeles, CA - Griffith Park (4,217 acres / 17.07 km²)

Should a "state park" really count? A "wildlife refuge"? A "preserve"? I don't know if Wikipedia and I are thinking of the same thing.

But 1/10th of New Orleans (907 km²) is taken up by a wildlife refuge. FYI!

Source: Wikipedia

The More You Know: Maybe it's time to take your kids to see the buffalo.