| Answer | % Correct |
|---|---|
| Mississippi River | 51%
|
| Texas | 50%
|
| Lake Michigan | 49%
|
| Iowa | 44%
|
| Great Salt Lake | 43%
|
| Hoover Dam | 43%
|
| Mount St. Helens | 37%
|
| Yellowstone Caldera | 30%
|
| Badlands | 27%
|
| Long Island Sound | 27%
|
| Old Faithful Geyser | 27%
|
| Crater Lake | 25%
|
| Bering Sea | 21%
|
| Straits of Mackinac | 15%
|
| Brooks Range | 11%
|
| Cape Girardeau | 11%
|
| Isle Royale | 11%
|
| San Juan Islands | 11%
|
| Box Elder County | 6%
|
| Pencil Islands | 3%
|