Sanborn thing

[HunterGatherer]

I have located this, pre-1924 thing. I struck out looking for a privy (misread the map, too obvious now) but I did find 5 concrete slabs exactly where whatever it is, was. Soft dirt underneath, nothin crunchy tho. Is it worth excavatng?

 

[CALDIGR2]

Looks like a woodshed or henhouse to me. Out here in CA, privys are not indicated by any symbol, letter, or number. Sometimes, WCs are indicated as such, but we don't touch them. Too new.