The speed limit is 25 mph on most of the loop rd! You can expect to stop many times. Please allow enough time to see the park. It is about 30 miles and will take about 2 and a half hours if you don't get out to walk one of the many trails.
South loop is over 30 miles...a very nice drive
South unit is 36 mi loop, N unit is in and back 28 mi
We spent 2.5 hours to complete the loop but we stopped three times to hike along the road and check the views and stopped for many animals to snap pictures.
Usually about 250 images for complete loop. If you are a photographer that is.
Over 30 miles...nice drive...totally well worth the drive
South loop is 36 miles, North is 14.
The North Unit is 14 miles one way. It dead ends and you turn around and go back the same route you came. So 28 miles round trip.
It is about 36 miles. But you can take some side roads to different trails . So time depends on what you want to do.
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