Could be a member of the Cortinarius family. Many of them are poisoneus. If it is Cortinarius, then you can check presence of the orellanine by lighting its cut surfaces with UV light, because orellanine is fluorescent. Some Cortinariuses are edible, but I don't recognise your mushrooms as edible ones. Unless you positively ID these mushrooms as edible species, don't try them! My wild guess would be Cortinarius albofragrans.
Impressively large find! Appears to be either an Agaricus or Leucoagaricus. Some Agaricus are edible and some will cause gastrointestinal distress. Region? Habitat? Odour? Bruising colour?
I didn't eat :) From someone's lawn in Burnaby. smells like ordinary edible one. next time I will try UV light on them. thank you all.
UV light may work on orellanine, but it won't tell you anything about the many other possible poisons. A spore print will provide more useful information. My guess is that it is Leucoagaricus leucothites, a common edible mushroom in the Vancouver area, but not one that a novice should eat because it resembles some very poisonous Amanitas. Leucoagaricus leucothites has a white spore print, and Cortinarius mushrooms generally have rusty-coloured spores. So it should be easy to discriminate between the two. The other possibility mentioned by Frog, Agaricus, has brown spores, but spore print colour alone won't give you a positive ID. You should know exactly what species you have found before eating any mushroom.
