MBMG Calendars Through the Years

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This year's calendar features our Montana Sapphires.The first reported discovery of sapphires in the U.S. was in 1865, by miners seeking gold in gravel depositsalong the Missouri River near Helena—but there was no "sapphire rush." Early miners recognized that the stones were unusual, but with no obvious market they continued to focus on gold. More sapphires were soon discovered in other gravel deposits in southwestern Montana.

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For over two and a half decades the Bureau has produced "Day at a Glance" calendars featuring different aspects of Montana's scenery and culture. As our calendars evolved, a geologic description, an area history, and interesting facts were added to the back of the calendar.

We are always looking for great photos, sketches, and ideas for our calendar, so if you have any photos with interesting geologic facts, send them along and maybe they will become part of our calendar collection.

If you click the thumbnails below, they will open PDF files with full size renditions of the calendars.


1987 Tranquil Falls— Marias Pass, northwestern Montana
	1988 "Eye of the Needle," along the Missouri River, downstream from Fort Benton, Montana
1989 "From the Mountains to the Prairies" — Rocky Mountain front near Augusta

1990 "Richest Hill on Earth"—
Dublin Gulch, Butte, Montana
(circa, 1910 — © Diane Nugent,1989)

1992 "Citadel Rock"— Fort Benton, Montana
(The Far West steaming toward Fort Benton,
© G. R. Lucy,1872)

1991 "Square Butte", — west of Great
Falls ( A Cowboy and his Friends,
© C.M. Russell,1922)

1993 "Age of Dinosaurs" Cretaceous
Period - 80 Million years ago
(© Monte Dolack)

1994 " Mount Gould" —
Glacier Naional Park (© Larry Ulrich)

1995 "Gold Dredging on
Grasshopper Creek at Bannack"
(circa 1898– © Diane Nugent, 1994)

1996 " Chinese Wall"
— Bob Marshall Wilderness (© Rick Graetz)

1997 "Jerulselm Rocks"— Montana's badlands,
north and west of Shelby, MT (© Baub Kyle)

1998 "Madison Range" — southwestern
Montana (© David E. Lageson)

1999 " Bighorn Canyon" — view looking
south of the Ok-a-beh area,
(© Salvatore Vaspolli )

2000 " Pompey's Pillar" — Yellowstone
River (© Teresa Donato,1999)

2001 "Crazy Mountain" — south-central
Montana, north of Livingston
(© John Lambing)

2002 " Birdtail Butte" — a natural
landmard southwest of Great Falls
(© John Lambing)

2012 "Beaverhead Range" — these peaks are the highest and most rugged in the chain of mountains that forms the Idaho–Montana border
( © Jeff Lonn )