It’s easy to forget or to never even realize it – but much of northern Arizona’s landscape was shaped by fire. Or by lava, if you prefer a more precise word.
Volcanoes disgorged magma onto the surface, forming everything from towering giants like the San Francisco Peaks to the loaf-like dome of Mount Elden to the mysterious hoodoos of Red Mountain. But trees have covered the landscape, often concealing the area’s volcanic origins.

S.P. Crater – Way Off the Radar
S.P. Crater, however, will resist any attempts to whitewash its furious history. This beautifully shaped cinder cone had the foresight to belch a four-mile long lava flow onto the flat prairie lands. Today, nearly 71,000 years after its birth, S.P. Crater stands out among a multitude of lesser cinder cones in the area, beckoning visitors to peer into the crater that once spewed ash and blobs of lava.
Few hear its call, though – that’s likely because of the nearby Sunset Crater National Monument. The park might be slightly more picturesque, with its pine forest and an equally haunting lava flow.
But for me, S.P. Crater has an effect that its just-slightly Disney-fied neighbor doesn’t: a sense of solitude that practically takes me back in time. I can picture the lava glowing red as it churns across the landscape like so much hell-flavored soft-serve ice cream. I can smell the sulfur in the air as another family of bombs rockets out of the crater, borne aloft by super-hot gases. I can imagine fumaroles venting steam into the air.
Also, I can climb directly to the top, and even descend into the crater. This is forbidden at Sunset Crater, for concern of erosion. Park officials closed the slopes in the 1970s, propelled by fears that, one day, Sunset Crater would be nothing. I don’t know if there is any hard science to back that notion – if there is, I’d like to see it.

Not as Touristy as Sunset Crater
On a Memorial Day weekend exploration, I encountered not a single hiker. A few pickup trucks passed within a few miles, but our only company was the cattle (S.P. Crater is on land belonging to the Babbitt family, and I applaud them for granting access to those who want to visit the craters). When the wind died down, we could hear them lowing even from nearly 900 feet above them.
Engine noise from the highway is nonexistent, and you can catch glimpses of the brilliant colors from the Painted Desert; it looks just a few miles away, but is closer to 100 miles distant. You can watch small cloudbursts roll in, drop rain and disappear. Be careful, though, because some will contain lightning. Use your head.
If you’re in northern Arizona, I’d recommend visiting both of these iconic volcanoes. Each will give you a distinct experience that will be hard to forget.
How to Get to S.P. Crater
Just head north from Flagstaff on Highway 89. Go past the turnoff to Sunset Crater. SP Crater will soon be in view.
Look for a dirt road headed west. If you see Easy Joe’s Saloon, turn around and head back. The dirt road will branch off more than a few times. I’ve found my way to S.P. Crater more than a few different ways. Don’t worry about getting lost. It’s easy to get back to 89 one way or another.
Make Time for the Lava Flow
The lava flow north of the crater is worth checking out up close. It’s about 5 miles long and extremely rough – you’re not going to be able to see all of it. But who knows what’s waiting to be found in it? Lava flows are always a good place to find a lava tube.
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This post is really well written! I like your writing style. You’ve got the perfect blend of interesting and informative (with some wit thrown in for good measure).