Cameraman, I detect 5+/- nights a week in the St Cloud area. As for St Cloud St U's campus, I've found good things there whenever there is construction going on....silver rings, silver coins, a 1910 'St Cloud Central H S' class pin, and an 1896 St Cloud "Dog Tax" tag. Now at the east end of 8th St S (on the campus at the Mississippi river) there is a lot of construction going on. I've been at that site now for only 2 or 3 times and found little. I'll continue my quest there.
As for the gigantic construction continuing on Hwy 23 near Lk George, I've detected mainly on the N E corner of the lake where it's all torn up.....a 1932 Minn license plate, a few Wheaties, a Merc, and a perfect light green 1 pint Mason canning jar "Patent Nov.30th - 1858". It's nice, since St Cloud was founded in 1856. (Yes I know, the jar could have been made in the 1920s.)
Also, look for torn-up old neighborhoods.....new watermains, sewer, sidewalks, etc. On 8th Ave N construction is now taking place from 12 th St N to 18th St N. I've hit it many times and the findings weren't too exciting due to newer homes....the 1960s ? I've only found 4 silver dimes and a silver quarter there. So, dust off your detector and get busy. Goose