Skip to main content

Arizona State Route 51 from Piestewa Peak

Between 2010 to 2013 I lived about half a mile north of the Phoenix Mountains Preserve which allowed me access to the Piestewa Peak Summit Trail.  The Piestewa Peak Summit Trail ascends to the top of 2,610 foot high Piestewa Peak which overlooks the majority of the City of Phoenix and Arizona State Route 51.


The Piestewa Peak Summit Trail off of Squaw Peak Drive in the Phoenix Mountains Preserve.  The Piestewa Peak Trail is a fast 2.2 mile round-trip but ascends 1,151 feet and can be just as difficult as nearby Camelback Mountain.




The view back down the Piestewa Peak Summit Trail from Piestewa Peak really puts into relief how steep it is.


Piestewa Peak is the second highest peak in the Phoenix Mountains after Camelback Mountain.  The mountain was originally known as Squaw Peak as early as 1910 but was renamed to Piestewa Peak in 2003.  The name of Piestewa Peak comes from Lori Piestwa of the U.S. Army and member of the Hopi Tribe.  Lori Piestewa was the first Native American woman to die in combat as member of the U.S. Military.

From Piestewa Peak the entirety of the 16.7 Arizona State Route 51 can be seen traversing through downtown Phoenix at I-10/AZ 202 north through the Phoenix Mountains to AZ 101.





AZ 51 was originally envisioned as part of the original Interstate system as a spur of Interstate 10 north out of downtown Phoenix.  This Interstate Spur was ultimately not included into funding during the original run of Interstates in Arizona but would appear on ADOT logs as I-510 before being changed to AZ 510 in 1968.  The route of AZ 510 was to known as the Squaw Peak Freeway.


Oddly the first five miles of AZ 510 north of I-10 to Glendale Avenue were constructed by the City of Phoenix between 1986 and 1991.  In 1987 the route number of AZ 510 was changed to the current designation of AZ 51.  In 1992 the original five miles of AZ 51 was turned over to ADOT for maintenance which in turn reconstructed it to state standards in 2003.  AZ 51 was completed from Bell Road north to AZ 101 in May of 2003 and I actually recall driving it the week after it had opened.  2003 also saw the Squaw Peak Parkway name changed to Piestawa Peak Parkway to reflect the renaming of Piestewa Peak.

Arizonaroads on AZ 51

Comments

Popular posts from this blog

Did Caltrans just kill the G26 cutout US Route shields?

The US Route System was formally created by the American Association of State Highway Officials during November 1926.  Through the history of the system the only state to which has elected to maintain cutout US Route shields has been California.  The G26 series cutout US Route shields have become a favorite in the road enthusiast hobby and are generally considered to be much more visually pleasing than the standard Federal Highway Administration variant.  However, the G26 shield series appears to have been killed off on January 18, 2026, when Caltrans updated their Manual of Uniform Traffic Control Devices.  This blog will examine the history of the US Route shield specifications in California and what is happening with the 2026 changes.  The blog cover photo is facing towards the terminus of California State Route 136 and at a G26-2 specification US Route 395 shield.  In the background Mount Whitney can be seen in the Sierra Nevada range.   ...

May 2023 Ontario Trip (Part 3 of 3)

  Over the years, I have made plenty of trips to Ontario, crisscrossing the southern, central and eastern parts of the province. Living in Upstate New York, it's pretty easy to visit our neighbor to the north, or is that our neighbor to the west? Ottawa is one of my favorite cities to visit anywhere in the world, plus I've discovered the charm of Kingston, the waterfalls of Hamilton (which is on the same Niagara Escarpment that brings us Niagara Falls), the sheer beauty of the Bruce Peninsula, and more. But I hadn't explored much of Cottage Country. So I decided to change that, and what better time to go than over Memorial Day weekend, when the daylight is long and I have an extra day to explore. On the third and final day of my trip, I started in Huntsville and made my way through Muskoka District and Haliburton County, passing by many lakes along the way. I stopped in towns such as Dorset, Haliburton and Bancroft before making a beeline down to Belleville and then over th...

Ghost Town Tuesday; Nichols, FL

A couple years ago I spent a lot of spare time exploring phosphate mining ghost towns in the Bone Valley of Polk County, Florida.  One ghost town in particular called Nichols on Polk County Route 676 west of Mulberry caught my eye due to a relative lack of documentation on ghosttowns.com. Nichols was created in 1905 during the early phosphate mining boom in the Bone Valley region.  For the time Nichols was unusual since it had company housing in the Nichols Mine site and private residences outside the gate.  Nichols is only about two miles west of Mulberry which probably made it a somewhat reasonable commute even by the wonky standards of the early 20th Century.  Most of the Bone Valley region was relatively remote which made commuting or homesteading impractical which is why there are so many ghost towns in the area.  The company housing section of Nichols was phased out and abandoned by 1950. The Nichols town site is largely abandoned and could "possibl...