▁Canada ▁are ▁found ▁in ▁the ▁Well s ▁Gray - Clear water ▁vol can ic ▁field ▁of ▁east - central ▁British ▁Columbia ▁and ▁in ▁k im ber l ite ▁fields ▁throughout ▁Canada . ▁A ▁notable ▁field ▁of ▁ma ars ▁is ▁found ▁in ▁the ▁P ali - A ike ▁Vol can ic ▁Field ▁in ▁Pat ag onia , ▁South ▁America . ▁and ▁in ▁the ▁Sud an ese ▁Bay uda ▁Vol can ic ▁Field . ▁The ▁A uck land ▁vol can ic ▁field ▁in ▁the ▁urban ▁area ▁of ▁A uck land , ▁New ▁Zealand ▁has ▁several ▁ma ars , ▁including ▁the ▁readily ▁accessible ▁Lake ▁P up u ke ▁in ▁the ▁North ▁Sh ore ▁sub urb ▁of ▁Tak ap una . ▁ ▁One ▁of ▁the ▁most ▁notable ▁cr aters ▁mis ident ified ▁as ▁a ▁maar ▁is ▁Arizona ' s ▁Meteor ▁Cr ater ; ▁for ▁many ▁years ▁this ▁was ▁thought ▁to ▁be ▁of ▁vol can ic ▁rather ▁than ▁meteor ic ▁origin . ▁ ▁Germany ▁ ▁E if el ▁ma ars ▁▁ ▁In ▁the ▁Vol can ic ▁E if el ▁there ▁are ▁about ▁ 7 5 ▁ma ars . ▁These ▁include ▁water - filled ▁maar ▁la kes , ▁but ▁the ▁great ▁majority ▁are ▁dry ▁ma ars . ▁Both ▁types , ▁lake - filled ▁ma ars ▁and ▁dry ▁ma ars , ▁are ▁typical ▁of ▁the ▁Vol can ic ▁E if el . ▁The ▁last ▁er u ptions ▁took ▁place ▁at ▁least ▁ 1 1 , 0 0 0 ▁years ▁ago ▁and ▁many ▁ma ars ▁in ▁the ▁E if el ▁are