Don't let the fact that this is an unlaced road stop you from exploring in a sedan or other nonSUV. I came up this road in a Corolla and actually this was a better road than many paved roads I've traveled. Yes you have to drive slower, but the 7 miles through this park is so beautiful, if you don't slow down or even just stop to admire the stunning beauty you will miss the pin of being here.
I took this route from crescent city into Jedidiah Smith state park heading to stout grove. After spending time in the grove, I continued in this road until it hit hwy 199. There is construction on the bridge, which was the most treacherous part of the whole road. But you get rewarded with a sweet little wooden covered bridge at the end. It's one of the states most scenic roads. Take your time and just do it

Howland Hill road is an unpaved old stage coach road through some of the most pristine Redwoods in the National and State Park system. It is narrow and slow travel, which is fortunate because the Wow factor is really high. Along its 7 miles are several trail heads that lead hikers through close encounters with some of the oldest and largest living things on earth. Visitor center maps will show where the trail are. Everyone has their favorite or destination trail, but for kids, look at Nikerson Ranch. 5/8 mile to a large downed hollowed Redwood. With the appearance of roomz c and windows, it looks like the Ewoks could return any minute.
On the Nirth end of the unpaved road turn off on the paved drive to Stout Grove. This half mike loop is the one place in the,Redwoods you should get out and explore if you stop nowhere else. Believe me, if you pass this area without taking in Howland Hill and Stout Grove then later see it on a tv special or magazine, you will be so disappointed, you will try and to kick yourself with both feet. That could wind up getting pretty awkward and embarrassing so make the most of your opportunity. Or make it a destination.

This is a lovely road through the ancient giants! Every time I drive through it, I am amazed at the beauty of the redwoods. Do go there to visit!