This 2,100-person Wyoming town quietly holds two records the whole world recognizes

Star Valley’s best-kept secret isn’t a secret for long

Most people blow through Star Valley on their way to Jackson Hole or Yellowstone, windows up, miles to cover.

Afton, Wyoming, sits about 70 miles south of Jackson, a town of roughly 2,100 people tucked into a 45-mile corridor of green pastures and mountain peaks along the Idaho border.

It holds two world records, a forgotten aircraft factory, a piece of Oregon Trail history, and access to millions of acres of open public land. Slow down.

You’ll want more than an afternoon.

Afton was carved out of the wilderness with a rope and a square

The town dates to 1885, when pioneers surveyed the original site using nothing more than a carpenter’s square and a rope. They laid out 30 blocks of 10 acres each and sold them for a dollar a block.

A sawmill went up that same year, a general store and flour mill followed in 1886, and by 1889, about 60 families called Afton home.

The founders named it after the River Afton in Ayrshire, Scotland, because Swift Creek reminded a local leader of that Scottish waterway. The town was officially incorporated in 1902.

3,011 elk antlers arch over four lanes of traffic

Right in the middle of downtown, spanning all four lanes of Highway 89, sits the World’s Largest Elkhorn Arch.

It stands 18 feet tall and stretches 75 feet wide, built from 3,011 naturally shed elk antlers that together weigh more than 15 tons.

The Afton Chamber of Commerce dreamed it up in 1956, and workers finished it in July 1958 at a cost of about $2,500. Today, replacing just the antlers would run an estimated $300,000.

No elk were harmed; every antler was collected each spring from the National Elk Refuge near Jackson under special permits.

Two wooden bull elk locked in battle crown the top

Stand beneath the arch and look up. In the early 2000s, local chainsaw sculptor Jonathan LaBenne added two life-size wooden bull elk to the top, their antlers locked in a mating battle, with an “Afton, Wyoming” sign below them.

Smaller antler arches flank each side at street level, framing the sidewalks.

Boy Scouts still gather shed antlers at the National Elk Refuge each year, raising funds through antler auctions to keep the tradition going.

A coat of weatherproof finish goes on every year to protect the whole structure from Wyoming winters.

A spring that turns itself on and off like a faucet

Five miles east of downtown, Swift Creek Canyon hides something that exists in only a handful of places on Earth. Periodic Spring, also called Intermittent Spring, is the largest rhythmic spring in the world.

From late summer into fall, it cycles on and off on its own schedule, with intervals that can run from several minutes to roughly 15 minutes or more, depending on the season.

Scientists think an underground siphon effect drives it: groundwater fills a cavern, triggers a natural drain, and then repeats when air breaks the siphon. The spring also serves as Afton’s municipal water supply.

The trail to the spring is short and worth every step

You get there by driving east from downtown on 2nd Avenue, about five miles up a road that goes to dirt after the first mile and follows Swift Creek into the canyon.

The hike from the parking area to the spring runs about a mile on a well-worn trail.

Along the way, you’ll pass limestone cliffs, small waterfalls, and cascading pools in the creek, with real chances to spot deer or moose in the willows. The cycling effect is best in late summer through fall.

During peak snowmelt, the spring may just run straight through without stopping.

A small-town factory built mountain airplanes by hand

In 1939, a local man named Reuel Call started the Call Aircraft Factory right in Afton.

From about 1940 to 1970, the factory designed and built small planes made specifically to take off and land in tight, high-altitude mountain terrain.

Workers produced the CallAir A-3 cabin plane, the A-5 agricultural spray plane, and snow cars that were early forerunners of the modern snowmobile.

At peak production, about 100 Star Valley residents worked there as skilled technicians in steel, wood, fabric, and paint.

The CallAir Museum in the Afton Civic Center on North Main Street preserves restored aircraft and the full story.

Oregon Trail wagon ruts still run through this valley

The Lander Cutoff of the Oregon Trail passed directly through Star Valley, following what is now Highway 89.

Built in 1858 under engineer Frederick W. Lander, it was the first federally funded road project west of the Mississippi.

The route saved wagon trains about seven days of travel by threading through mountain terrain with steady water, wood, and forage along the way.

In 1859, its first year of use, more than 13,000 emigrants traveled it.

The Lander Trail Museum at 140 West 1st Avenue, near the Civic Center, holds exhibits and a library dedicated to that chapter of the westward migration.

The oldest buildings in Star Valley still stand today

A few miles down the valley in Etna, the Baker Cabin dates to 1889 and is one of the oldest surviving homes in Star Valley. A mother and daughter built it while the father worked in Montana.

The Old Auburn Rock Church, also from 1889, has been on the National Register of Historic Places since 1985 and still hosts old-time plays each summer.

In the same area, a 1938 hydroelectric plant built with New Deal funding powered the whole valley for 30 years and earned its own spot on the National Register.

Three trout rivers and 3.4 million acres of national forest

The Salt River, Greys River, and Snake River all run through or near Star Valley, and all three hold cutthroat, rainbow, and brown trout.

The Salt River has multiple public access points north of Afton, and drift boats and inner tubes both work through the Narrows, where the river squeezes between the mountains.

The Greys River Road runs nearly 60 miles through Bridger-Teton National Forest from Alpine south to Tri Basin Divide, with camping, hiking, and wildlife, with far fewer people than the national parks nearby.

The forest itself covers over 3.4 million acres, one of the largest in the lower 48.

Golf, stargazing, and hundreds of miles of snowmobile trails

Afton sits along the Star Valley Scenic Byway, an 80-mile stretch of Highway 89 that rolls through pastures, small communities, and mountain passes.

Star Valley View Golf Course in town is an 18-hole public course designed by Johnny Miller. Cottonwood Lake, about 14 miles out by road, has a flat family-friendly trail around clear mountain water.

Come winter, hundreds of miles of snowmobile trails open up across the valley, along with cross-country skiing. And on clear nights, the skies here are dark enough to earn the name Star Valley all over again.

The real West is still here, if you’re willing to look

Most travelers rush through Star Valley chasing Jackson Hole or Yellowstone without stopping. That’s their loss.

Afton gives you world-record landmarks, a spring that breathes on its own schedule, pioneer history you can walk through, and uncrowded public land in every direction. The elkhorn arch still towers over Main Street.

The night sky still looks the way it did when the first settlers arrived.

For anyone who wants Wyoming without the crowds and the prices that come with them, this valley is worth more than a glance through the windshield.

Visit Afton in Star Valley, Wyoming

You can reach Afton by heading south from Jackson on Highway 89 through Snake River Canyon, about 70 miles and roughly two hours. The Elkhorn Arch sits right on Highway 89 in the center of town and is impossible to miss.

Periodic Spring is about five miles east of downtown via 2nd Avenue. The CallAir Museum and the Lander Trail Museum are both near the Civic Center on North Main Street.

Check the official website for current museum hours and admission details before you go, as seasonal schedules vary.

This article was created with AI assistance and human editing.

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