North Montreal, Charlemagne, Lachenaie is rather impressive also. Needs Log axis to print out the results visibly.

https://www.gmcmap.com/historyData.asp?Param_ID=17717804628

Spiked multi-thousand several times in the last couple days. Out of the last week, with ~2500 entries, ~500 > 100 CPM, ~20 > 1000 CPM.

Looks like they're in the middle of suburbia next to a mall. Maybe their neighbor bought uranium or something? However, also downstream of the city dump is what it appears, possibly somebody dumped something they should not have?

Also, would not have noticed the History Data printout otherwise, so thanks on that.

probably just a miscalibrated "tube"

there is a hotspot in peter jensen's house milwaukee too ... but alas not a stranger thing, likely just his thing is dirty.