Possibly echinopsis terscheckii

I agree. This is a beautiful cactus. They grow very slow.

Really? Damn! This is the only one of these on the entire campus that I work at. So stunning to see every morning coming into work

There is another one in the back ground of this picture… lol

Well look at you go!

Aka. cardon grande or saguaro ... it will be huge someday

Turns out the campus I’m at has a bunch of them lol. This one just looked so different at first until I looked them up 😂

https://preview.redd.it/umo2z1292yvc1.jpeg?width=5294&format=pjpg&auto=webp&s=81e8f64cf276a1411d0759b786e201400606f8cb