230 sq miles. Not sure that information will help, as there is a lot of inaccessible areas and lots of hard and medium hiking trails. It's easily a full day or 2 if you pace yourself
You can drive through on highway 9 and it is about 25 miles. Also if you to Kolob Canyon which is part of the park you can take a 5 mile drive one way with some fabulous views.
It's a huge Park but you can do small and Medium hikes... Some are very easy and you can have a large View of the Park !
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