A single pool of water in New Mexico made this sandstone cliff the world’s oldest guest book

El Morro’s rock face tells everyone’s story

In the high desert of western New Mexico, a 200-foot sandstone bluff rises above a valley that looks like nothing much happens here. But stop at the base and look closely at the rock.

Names, dates, drawings, and messages cover the cliff face, layer upon layer, going back a thousand years. A natural pool sits at the bottom, and that pool is the whole reason any of it exists.

The story carved into this rock starts long before the United States did.

The waterhole that made the desert crossable

The pool sits on the east side of the bluff, tucked into a pocket of shade where the cliff blocks the afternoon sun. Rain and snowmelt run off the mesa top and collect in this single basin, keeping it full year-round.

Out here, between the Acoma and Zuni pueblos, reliable water was rare enough that travelers built entire routes around it. The ancient Zuni-Acoma Trail, a major trade road, ran right through here.

If you needed water, El Morro was where you stopped.

Petroglyphs left by the people who built on the bluff

The oldest marks on the rock came from Ancestral Puebloans, carved as far back as 1,000 years ago. You can see bighorn sheep, lizards, snakes, bear paws, and human figures cut into the sandstone.

The descendants of some of those carvers, ancestors of today’s Zuni people, built Atsinna Pueblo right on top of the bluff around 1275 and lived there for more than a century.

They even carved hand-and-toe steps into the cliff face so they could reach the waterhole below.

A Spanish governor carved his name 15 years before Plymouth Rock

On April 16, 1605, Spanish Governor Juan de Onate stopped at the pool on his way back from an expedition to the Pacific coast. He pulled out a tool and carved his message into the rock in Spanish.

It translates roughly to: “Passed by here the Governor Don Juan de Onate, from the discovery of the Sea of the South.” That inscription is still there.

The Pilgrims wouldn’t land at Plymouth for another 15 years.

Over the following two centuries, Spanish governors, soldiers, and priests kept adding their names to the cliff.

Three names, three centuries, one rock face

Spanish explorers called it El Morro, meaning “the headland.” The Zuni people call it A’ts’ina, meaning “place of writings on the rock.”

Anglo-American travelers knew it as Inscription Rock after U.S. Army Lt. James H. Simpson documented it in 1849 and the name caught on.

Each of those names came from a different group of people passing through, stopping for water, and leaving their mark.

All three names still get used today, which tells you something about how many different chapters this place has lived through.

Gold Rush wagon trains added English to the cliff

After the U.S. took New Mexico in 1846, English started appearing on the bluff. Lt. Simpson and artist Richard Kern were among the first Americans to carve their names in 1849.

Wagon trains headed to California during the Gold Rush rolled through and used the pool as a water stop, and their members added their names too.

Soldiers, railroad scouts, and surveyors followed over the next few decades.

By the early 1900s, newer carvings were starting to damage older ones, and the race to protect the rock was on.

Roosevelt made it a monument in 1906 to stop the carving

President Theodore Roosevelt designated El Morro a national monument on Dec. 8, 1906. A federal law passed that same year made any further carving on the cliffs illegal.

The monument now preserves over 2,000 inscriptions and petroglyphs in one place, the oldest legible European carving dated 1605, Ancestral Puebloan petroglyphs going back centuries before that, and everything in between.

No other site in the country holds a record quite like it, written by this many different hands across this much time.

Atsinna Pueblo still stands on the mesa top

Climb to the top of the bluff and you’ll find the ruins of Atsinna Pueblo spread across the mesa.

It was a large settlement with hundreds of multi-story rooms surrounding an open courtyard, plus square and circular underground kivas used for ceremonies.

The villagers farmed corn, beans, and squash on the plains below and collected rainwater in cisterns on the mesa. The site was partially excavated in the 1950s, and only a portion is visible now.

Preservation takes priority over further digging.

The mesa top opens up into panoramic desert views

The mesa surface runs white, red, and orange in patches, and a deep box canyon splits the plateau in two.

From the top, you can see the Zuni Mountains stretching out to one side and the dark, jagged lava fields of El Malpais National Monument on the other. The high desert drops away in every direction.

It’s the same view the Atsinna villagers had for over a century, minus the ruins they were living in, which are now the ruins you’re standing next to.

The rock itself is 150 million years old

The bluff started as sand dunes during the Jurassic Period, when wind piled them across a wide stretch of what is now the Southwest. Over millions of years, those dunes compressed into sandstone.

You can still see the cross-bedding in the rock face, the diagonal lines left by the original layered dunes.

A harder cap of Dakota sandstone sits on top of the mesa, protecting the softer Zuni sandstone below from faster erosion.

That softer stone made it easy to carve, which is why so many people did, and why preserving what they left is now a constant effort.

After dark, the Milky Way arcs over Inscription Rock

El Morro earned International Dark Sky Park certification in December 2019.

Sitting at roughly 7,200 feet and far from any major city, the monument has some of the darkest skies in New Mexico.

On a clear night, you can stand at the base of Inscription Rock and watch the Milky Way stretch across the sky above it. The monument runs a free campground with nine first-come, first-served sites among the junipers.

Staying overnight is the easiest way to catch those skies at their best.

El Morro connects to a wider ancient landscape

Highway 53, the road that runs past El Morro, goes by another name locally: The Ancient Way. Head east and you hit the town of Grants.

Head west and you reach Zuni Pueblo. The monument sits along the Trails of the Ancients Byway, a New Mexico Scenic Byway that links prehistoric sites across the region.

El Malpais National Monument is just to the east, with cinder cones, lava tubes, and the Bandera Ice Caves all within a short drive. The ancient Zuni-Acoma Trail runs through El Malpais and you can still hike it today.

Walk the Inscription Trail or climb all the way up

Two trails start at the visitor center. The Inscription Trail is a paved half-mile loop that runs along the base of the bluff, past the pool, past hundreds of carvings, and back.

It’s mostly flat and works well if you have limited time or mobility.

The Headland Trail adds a 2-mile loop that climbs about 250 feet via switchbacks to the mesa top, with stone steps and metal railings on the steeper sections.

Dogs on leash are welcome on both trails and in the campground.

Visit El Morro National Monument in New Mexico

To get there, take Highway 53 west from Grants for about 43 miles into Cibola County. The visitor center has exhibits and a short orientation video worth watching before you hit the trails.

Hours and admission fees can vary by season, so check the official website before you go for current details. The free campground runs year-round on a first-come, first-served basis with nine sites.

If you plan to stay the night, arrive early, especially in spring and fall when spots go fast.

This article was created with AI assistance and human editing.

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