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City summit South of Scottsdale Tempe Preserve since 2002

Hayden Butte, 'A' Mountain: The Twenty-Minute Climb Above Mill Avenue, Twenty Minutes South of Old Town

Hayden Butte, which everyone calls A Mountain for the sixty-foot letter on its south face, is the 1,495-foot volcanic hill between Mill Avenue and the football stadium in downtown Tempe. A paved-then-rocky trail climbs about 300 feet from 5th Street to the summit in twenty minutes, past Hohokam petroglyphs on the way, to a view that takes in Tempe Town Lake, the bridges, the stadium bowl and the Phoenix skyline. The city made it a preserve in 2002. It is the best short climb within twenty minutes of Scottsdale, and the one to do at sunset after dinner.

Illustration for Hayden Butte ('A' Mountain): city summit in Tempe

The 30-second version

  • The summit is 1,495 feet above sea level and about 330 feet above downtown; the trail from the 5th Street side is a little under half a mile each way, paved for the first stretch and rocky steps after, and takes most people twenty minutes up.
  • The A is sixty feet tall, built of reinforced concrete in 1955 after the previous rock letter was dynamited; it was an N for Tempe Normal in 1918, a T in 1925 and first an A in 1938, and ASU students whitewash it every year before the football season.
  • The butte has Hohokam petroglyphs from the centuries when the people who dug the Valley's canals lived at its foot; stay on the trail and do not touch them, and look for the figures on the dark boulders near the top.
  • The view covers the lake and its bridges, the stadium directly below the summit, the campus, the Papago buttes and Camelback to the north, and the Phoenix skyline; the city renamed the hill for Charles and Carl Hayden in 1961, though the USGS kept Tempe Butte.
  • Eighteen minutes from Old Town; park downtown or by the lake, start from 5th Street east of Mill or from the stadium's west side, bring water in every month, and go at sunrise or the last hour before dark.

Why leave Scottsdale for it

The easiest summit in the Valley: a 300-foot, twenty-minute climb from downtown Tempe to the painted A, with Hohokam petroglyphs on the way up and the lake, the stadium and the Phoenix skyline from the top; the warm-up or the consolation for Camelback.

Drive from Old Town

18 min · south

Area

Tempe

Status

Open

Where

Trailhead off E 5th St east of Mill Ave, Tempe, AZ 85281

Open in Maps ↗

Price

$$$$

Best for

A sunset climb after dinner on Mill, kids' first summit, game-day warmups

Season

All year

Official site

tempe.gov ↗

Summit

1,495 ft

Climb

About 330 ft

The A

60 ft, concrete, 1955

What it is

Hayden Butte is the dark volcanic hill at the north end of downtown Tempe, between Mill Avenue and the football stadium, with the sixty-foot white A on its south face that gives it the name everyone uses. It rises about 330 feet above the street to a summit at 1,495 feet, and a trail from 5th Street, paved at the bottom and rocky steps above, gets you to the top in twenty minutes. From there you look straight down into the stadium bowl, across the lake and its bridges to the Papago buttes and Camelback, west to the Phoenix skyline and south over the campus. It is the smallest climb in the Valley that earns a view, and the only one with a college town at the bottom of it.

The hill is older than the town. The Hohokam, the canal-building people of the Salt River Valley, lived at its foot for centuries and carved figures into the dark basalt boulders on its slopes, which is why the city made it a preserve in 2002 and why you stay on the trail. Charles Hayden’s ferry and flour mill sat at its northwest corner from the 1870s; the city renamed it for him and his son the senator in 1961, and the United States Geological Survey, which does not take suggestions, still calls it Tempe Butte.

Why leave Scottsdale for it

Because every Scottsdale visitor wants a summit and most of them do not have the morning for Camelback. This is the twenty-minute version: a real climb, petroglyphs on the way, a view, and dinner at the bottom. It is also the right place to watch the sun set over the lake after an evening on Mill, which nothing in Scottsdale replaces. Our best hikes note ranks the city’s trails; this one is the short answer when the question is “something I can do tonight.”

The practical version

Eighteen minutes from Old Town by Scottsdale Road and the 202. Park downtown or by the lake and walk to the trailhead on 5th Street east of Mill, or start from the stadium’s west side. Twenty minutes up, fifteen down. Water in every month. Sunrise or the last hour before dark from May through September; any time of day the rest of the year, though sunset is still the best of it.

When to go

Sunset, any month. The trail faces west and south and the light on the lake is the point. October has the fresh whitewash and the football Saturdays, when the saddle between the butte and the stadium is a free seat for the warmups. Summer is dawn or dusk only: the dark rock holds the day’s heat and the climb at noon in July is a bad idea even at twenty minutes. Winter is perfect at any hour, and the hill is one of the few places in the Valley where a crowd at the top is part of the pleasure rather than the problem.

The trail

  1. Start on 5th Street east of Mill Avenue, where the paved path begins behind the office buildings, or at the stadium’s west side, where a second path climbs the saddle.
  2. The paved stretch switchbacks up the west face past the Hohokam petroglyph boulders; they are marked, and the figures are on the dark varnished faces.
  3. The steps. The pavement gives out and the last third is rock steps and a worn path, steep but short. Hold a child’s hand here.
  4. The summit is a flat of boulders above the A with the whole East Valley below. The A itself is just down the south face; you can stand at its top.
  5. Down the same way, or down the stadium side to Veterans Way if you parked on Rural.

After

Mill Avenue begins at the bottom of the trail and Pedal Haus is a five-minute walk south; Tempe Beach Park is the same five minutes north, under the bridges.

With kids

The best first summit in the Valley: short, steep enough to count, a letter at the top and a stadium to look into. Bring water, hold hands on the steps, and tell them about the dynamite.

The story

The letter came first as an N. Tempe Normal School’s class of 1918 laid it out in whitewashed rock on the south face, and when the school became a teachers’ college in 1925 the students reshaped it into a T. The A arrived in 1938, loose rock again, and the tradition of whitewashing it before the football season began then. In 1952 somebody blew it up with dynamite. The university replaced it in 1955 with the sixty-foot letter of reinforced concrete and steel that is there now, and rival fans have been painting it red and blue, and the students painting it white again, ever since. Frank Kush, ASU’s football coach from 1958 to 1979, made his players run the butte as punishment.

The hill’s longer history is in the rock. The Hohokam, who built the canal system that the Valley’s modern canals follow, lived around the butte’s base from roughly the eighth century until their culture dispersed after 1450, and left petroglyphs, pottery and grinding stones on its slopes; the O’odham name for it translates as Dead Field Mountain. Charles Trumbull Hayden’s ferry across the Salt River, and then his flour mill, sat at the northwest foot of the butte from the 1870s, and the mill’s 1918 concrete building still stands there. The city council renamed the hill Hayden Butte in 1961 for Charles and his son Carl, the senator; the designation as a preserve came in 2002, after decades of the hill being a shortcut and a party spot.

The Scottsdale connection

The butte is the southern end of the chain of volcanic hills that includes the Papago buttes on Scottsdale’s southern line, the same red-and-black rock in a smaller dose. The Hohokam who carved it are the same people whose canals cross south Scottsdale and whose villages sat along the Indian Bend Wash; the petroglyphs here are the easiest in the Valley to see without a guide, and the desert varnish entry explains how they were made.

Getting there

Scottsdale Road south to the westbound 202, one exit to Mill Avenue, then south across the bridge; the butte is on the left as you cross. Park in a downtown garage, the lots off Rio Salado by the lake, or on Rural Road by the stadium if you are starting from that side. The light rail stops at Mill and 3rd Street, three blocks from the trailhead. Our best hikes note covers the harder summits when this one is not enough.

The pages this one leans on: the area, the note, and the places inside Scottsdale it pairs with.

While you’re out in Tempe

Arizona State’s college town: Mill Avenue, a two-mile lake with a beach park, Frank Lloyd Wright’s last public building, a football stadium, a brewery district on 8th Street and the cheapest good dinners near Scottsdale.

Also south of the city: Papago Park & the Airport Corridor · Chandler & Gilbert · South Mountain & Wild Horse Pass

The timeline

  1. 1918

    Tempe Normal School's class of 1918 lays out a letter N in whitewashed rock on the south face; it becomes a T in 1925 when the school is renamed Tempe State Teachers College.

  2. 1938

    An A of loose rock replaces the T, and the annual whitewashing by students begins.

  3. 1952

    Vandals with dynamite destroy the A; a sixty-foot letter of reinforced concrete goes up in 1955 and is still there.

  4. 1961

    Tempe's council renames the hill Hayden Butte for Charles Trumbull Hayden, who settled at its foot, and his son Carl, Arizona's senator; the USGS keeps Tempe Butte.

  5. 2002

    The city designates the hill the Hayden Butte Preserve, protecting the petroglyphs and the trail.

Questions people actually ask

How far is A Mountain from Scottsdale?

About eighteen minutes from Old Town with no traffic: Scottsdale Road south to the westbound 202, one exit to Mill Avenue, then south across the bridge; the butte is on your left as you cross the lake. Park in a downtown garage or the lots off Rio Salado and walk to the trailhead on 5th Street east of Mill.

How long does it take to climb Hayden Butte?

Twenty minutes up for most people and fifteen down, on a trail a little under half a mile each way with about 330 feet of gain, paved at the bottom and rocky steps higher up. It is a walk with a view rather than a hike; sneakers are fine, water is not optional, and from May to September do it at dawn or in the last hour of light.

What is the A on the mountain?

A sixty-foot letter A of reinforced concrete, built in 1955 after an earlier rock letter was dynamited, that ASU students have whitewashed every year since the first A went up in 1938. It began as an N for Tempe Normal School in 1918 and was a T for the teachers' college from 1925. Rival fans have painted it other colors more than once, which is why it gets repainted before every football season.

Are there really petroglyphs on A Mountain?

Yes. The Hohokam, who farmed the Salt River Valley and dug its canals for a thousand years before 1450, lived around the base of the butte and left carvings on the dark basalt boulders of its slopes. They are protected within the city preserve; stay on the trail, do not touch or climb on the marked rocks, and our lexicon entry on desert varnish and petroglyphs explains what you are looking at.

Is Hayden Butte a good hike for kids?

It is the best first summit in the Valley for a child: short, steep enough to feel like a mountain, with a letter at the top and a stadium and a lake to look down on. Hold hands on the rocky steps near the top and bring more water than you think a twenty-minute walk needs.

Vernacular & LexiconHohokamASUMesa and butteThe 202PapagoDesert varnish and petroglyphsValley Metro and the light railTrailhead

Facts checked: October 9, 2026 • Curated by the Scottsdale.tips editors • Hours, menus and admission change, and the drive time assumes no traffic. Confirm with the place before building a day around it.