Birch Mountains kimberlite field the Phoenix and Legend pipes. The diatremes within the field include: Birch Mountains kimberlite field The Birch Mountains kimberlite field is a cluster of kimberlitic volcanic pipes or diatremes in north-central Alberta, Canada that were emplaced during a period of kimberlitic volcanism in the Late Cretaceous epoch. As of 2011, 8 diatremes had been discovered in the field, and diamonds and microdiamononds had been recovered during sampling programs. The Birch Mountain (BM) kimberlite field was discovered in 1998 and lies about north of Edmonton and northwest of Fort McMurray. It is part of the Northern Alberta kimberlite province, along with
GemStone IV number seven on their "Top 10 Online Game Picks", remarking, "It has depth, community, and racks up 500,000 hours of use a month. Someone must like this game." In May 2010, "GemStone IV - Shattered" was released by Simutronics. It allows unrestricted player-vs-player combat and has no policy against automated play. GemStone IV GemStone IV is a multiplayer text-based online role-playing video game (often known as a MUD) produced by Simutronics. Players control characters in a High Fantasy game world named "Elanthia". The first playable version of the game was known as "GemStone ][" and was launched in April 1988