Today, in the midst of triple-digit temperatures throughout the state, we throwback to a frosty winter’s scene in 1967 Flagstaff, showing what is today Interstate 17 meeting Interstate 40. 

Of course, at the time, the road that would become I-17 was still known as State Route 79. It officially upgraded to interstate status in 1971. And I-40 would not be formally christened in Flagstaff until 1968, a year after this photo was snapped. The entire stretch across the state would be completed in 1984.

Immediately, our eyes are drawn to the snow-capped San Francisco Peaks, rising majestically over the City of Seven Wonders to a maximal apex of more than 12,600 feet.

And just below the peak, on the right side of the frame, we see the streets of downtown Flagstaff to the north, and an evergreen-shrouded Northern Arizona University immediately to its south. Not pictured: The Walkup Skydome, which wouldn’t break ground for another eight years, opening in 1977.

Nestled in the hills just west of downtown, is Lowell Observatory. At the time this photo was captured, Lowell was playing an integral role in the Apollo moon landing mission. The once-but-sadly-no-longer-a-planet Pluto was discovered there in 1930. Lowell Observatory sits atop Mars Hill… perhaps a glimpse into future discoveries.

Today, there are fewer trees and more shopping centers in the area immediately surrounding Milton Road, the street I-17 becomes after crossing I-40. But there are still plenty of ponderosa pines that peek down on visitors.

Currently, we have two ongoing I-40 projects in the Flagstaff area, and even more the further away we go. Meanwhile, I-17 has a slew of projects on deck in our Tentative Five-Year Construction Program.

So, while it continues to heat up in the Copper State this summer, we can lose ourselves in this refreshing glimpse of a time much cooler.

Today’s Throwback Thursday entry goes back to 1971. Flip Wilson is on your TV, the price of peanut butter is 59 cents, and Sunset Point is looking mighty inviting.

Yes, here’s a look at Interstate 17’s favorite rest area one half century ago. We can spot a Volkswagen Bus, a pickup with a pretty impressive camper shell, and perhaps a Buick Skylark towing one of those fancy silver Airstream trailers.

Fifty years later, Sunset Point remains a popular pit stop for folks traveling up and down I-17. Except now there are a few more vending machines and a lot more parking. Those baby trees in the foreground are undoubtedly nearly grown now, too.

Not much beats the breathtaking views Sunset Point offers. Especially around dusk, when you can take in a little thing called…the sunset.

The highway will definitely look different in the next few years. Interstate 17 is about to embark on an ambitious widening project beginning in 2022, bringing one additional lane in each direction and two flex lanes to the stretch between Anthem and Sunset Point by late 2025.