Special Report

National Parks With the Best and Worst Mobile Service

Slowest

Source: zrfphoto / iStock / Getty Images Plus

10. Mammoth Cave, Kentucky
> Median download speed: 6.2 mbps
> Median upload: 0.8 mbps
> 4G availability: Not available
> 5G availability: No

Source: stevegeer / E+ via Getty Images

9. Badlands, South Dakota
> Median download speed: 6.0 mbps
> Median upload: 1.7 mbps
> 4G availability: Not available
> 5G availability: No

Source: kerriekerr / iStock via Getty Images

8. Kings Canyon, California
> Median download speed: 5.4 mbps
> Median upload: 1.1 mbps
> 4G availability: 23.0%
> 5G availability: No

Source: Tim Speer / iStock via Getty Images

7. Big Bend, Texas
> Median download speed: 5.3 mbps
> Median upload: 1.0 mbps
> 4G availability: 4.0%
> 5G availability: No

Source: Samson1976 / iStock via Getty Images

6. Pinnacles, California
> Median download speed: 4.6 mbps
> Median upload: 0.8 mbps
> 4G availability: 23.0%
> 5G availability: No

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