[AStonesThrow]

Baseline Road in Maricopa County, AZ can be picked up at the Salome Highway in Tonopah: https://maps.app.goo.gl/bTe4WUQydug22Kqw6

That's nearly 50 miles west of Central Avenue in Phoenix, and it stretches another 33 miles east of Central, out to Apache Junction: https://maps.app.goo.gl/VrjSYy7QEuX9yNee6

The Phoenix-area grid is super-square; I figured it out by way of city bus routes, which are usually numbered according to the block address of the street they travel on. Mileage can be estimated by the number of major intersections you pass.

It is important to distinguish between numbered "Avenues" on the west side and "Streets" on the east side, and in Phoenix as well as other cities, the "east/west/north/south" designator of a road, as well as the city, must be considered when looking at any given address.

[mark-r]

I've flown in/out of Phoenix a couple of times at night, and it's glorious. All the streetlights on a regular grid make a beautiful sight.