The Montana Bureau of Mines and Geology in Butte released a new geological map of Montana on Monday in observation of National Earth Science Week.

To help celebrate the Governor and First Lady joined the Montana Bureau of Mines and Geology to release the new geological map of Montana.

State Geologist Ed Deal presented them with a large framed copy of the map. While not much has changed since the last map was printed in 1955 Deal says we now have an increased knowledge of the state s geology.

"What has changed is the detail that we know of the geology of Montana and that's what we re-depicting here."

Deal says that the latest version of the map is stored electronically and printed on demand so it can be updated as necessary.

Copies of the map are available for $60 on high-quality plain paper or $85 on glossy paper through the Bureau of Mines and Geology web site.

Students and teachers from several Montana high schools took part in the unveiling of the map on Monday.

     (Associated Press information included in this report.)