Q: What is the meaning of the stars with the names of old celebrities in them on the sidewalk at the northwest corner of Central Avenue and Monroe Street?

A: This was a deeply disturbing question, not because of the stars themselves, but because we had to get up off our pert little butt and actually walk over there and check it out.

And it occurred to us that we had trod that very stretch of sidewalk hundreds of times and never noticed the stars before.

The stars—eight of them—are a reflection of the past glory of the Hotel San Carlos, 202 N. Central Ave., which is still a very nice hotel, but at one time was Phoenix’s premier hostelry.

And when Hollywood stars were in town, that’s where they stayed. After all, it offered elevators and “automatic cooled air,” a kind of forerunner of air-conditioning, and ice-water spigots in the rooms.

There are many colorful rock formations spread across Arizona, and some of the more spectacular are located in Canyon deChelly on the Navajo Reservation at Chinle. The most prominent is Spider Rock, a towering sandstone obelisk that rises almost 900 feet above the floor of the canyon. Others aren’t quite as spectacular, but they’re nearly as large and they look like gigantic slates, kids mittens and huge lumps of red clay that were just dumped there by some giant sculptor.

Q: What exactly causes that fresh/earthy scent when it rains in the Valley? It’s a real distinct scent, not flowery or sweet, but more like a fresh, clean smell.

A: Your question worked its way to the top of the pile at just the right time — Tuesday, when we had that delightful morning rain. As soon as the skies cleared we leapt into the Valley 101 mobile research lab, and set out to find the source of the scent.

You are right. There was a truly remarkable aroma in the air, which we soon traced to a half-eaten Big Mac under the floor mats in the backseat of the Valley 101 mobile research lab. While we would not describe this as “fresh/earthy” it was definitely distinctive.

After a stop at the car wash, we sought advice from the estimable Carolyn O’Malley, executive director of the Desert Botanical Gardens and an honorary member of the Valley 101 faculty.

Santa Cruz County is for the birds. That’s not a criticism. It’s a compliment.

Literally and figuratively, birds are a major component of the Santa Cruz Tourism Council’s effort to draw visitors to the state’s smallest county. The area is well known as a birders’ hot spot, and that’s probably why birds of another feather have landed in 1o different locales. They are all sculptures, spread across the county at resorts, offices and parks as beacons that direct visitors to places of interest.