U.S. Geological Survey

Montana Aeromagnetic Compilation Index


Integration of Geochemical and Geophysical Data for the Montana Mineral-E nvironmental Study

Table of aeromagnetic surveys, specifications, and references.

No.1

Year Flown

Type2

Area Name

Line Spacing

Direction

Altitude (ft)3

Publication4

84

50

A

Bearpaw Mountains

0.5 mi.

var.

1000 AG

GP-150-153

85A

53

A

Boulder Batholith

2 mi.

E-W

10,500 B

GP-538

86

54

A

North Bearpaw

0.25 mi.

E-W

500 AG

GP-382-385

207

55

A

Bozeman

0.5 mi.

E-W

500 AG

GP-497,498

210

55

A

Townsend Valley

0.5 mi.

E-W

500 AG

GP-439,444,+

338B

59

A

Pend Oreille North-Central

1 mi.

E-W.

6000 B

P-646D

338C

59

A

Pend Oreille Central

0.5 mi.

E-W

6000 B

P-646D

508

62

A

Yellowstone '62

1 mi.

E-W

12,000 B

OF73-304

556

65

A

NW MT '65: Choteau

2 mi.

NE-SW

9000 B

P-726A

608

67

A

Northern Yellowstone '67

1 mi.

E-W

12,000 B

OF73-304

610

67

A

NW Montana '67

2 mi.

NE-SW

9000 B

OF69-289

628

67

A

Mission Range

1 mi.

E-W

9000 B

P-726A

652

68

A

Mission Range Fill-in

1 mi.

E-W

9000 B

P-726A

653

68

A

Little Belt Mountains

1 mi.

N-S

9000 B

GP-837

670A

69

A

Yellowstone Regional

1 mi.

N-S

13,000 B

OF73-304

670B

69

A

Yellowstone Regional

1 mi.

N-S

13,500 B

OF73-304

671

69

A

Selway-Bitterroot

1 mi.

N-S

11,000 B

GP-832

691

70

A

Beartooth

1 mi.

N-S

13,500 B

OF73-304

2252

79

D

Montana '79

0.5-1 mi.

E-W

8000 B

OF80-1127

3004

68

A

N.E. Idaho-W. Montana

1 mi.

E-W

7000 B

GP-682-691

3009

71

A

Missoula, MT., Lineament

1 mi.

N-S

7500 B

GP-934

3015A

72

A

Washington-Idaho-Montana

2 mi.

E-W

7000 B

OF73-293

3015B

72

A

Washington-Idaho-Montana

2 mi.

E-W

11,000 B

OF73-294

3021B

72

A

Central Idaho-SW Montana

2 mi.

E-W

12,000 B

OF75-655

3021C

72

A

North Absaraka Wilderness

1 mi.

E-W

12,000 B

B-1505

3021D

72

A

South-Central Montana

2 mi.

E-W

12,000 B

OF75-656

3108

77

D

Rogers Pass

0.75 mi.

NE-SW

7000 B

OF80-244

3109

77

D

Elkhorn Mountains

0.5 mi.

E-W

9000 B

OF78-325

3128

78

D

Wallace-Flathead

0.75-1 mi.

E-W

1000 AG

OF79-713

3129A

78

D

Dillon (Pioneer-Beaverhead Mts)

0.5 mi.

E-W

9000 B

OF79-758

3130

78

D

Big Snowy Mountains

1 mi.

N-S

9000 B

OF79-759

3147

79

D

Centennial

0.75 mi.

N-S

11,000 B

OF79-1443

3148

79

D

Gallatin

0.75 mi.

E-W

12,000 B

OF79-1648

3150

78

D

Blue Joint Area

0.75 mi

N-S

11000 B

OF79--1444

3185

81

D

Sapphire/Anaconda-Pintlar

0.5 mi.

E-W

1000 AG

OF81-1160

3186

80

D

Tobacco Roots

0.5 mi.

E-W

1000 AG

OF81-777

4020

81

D

Italian Peak

0.5 mi.

NE-SW

1000 AG

OF81-1162

4026

81

D

Mt. Henry

0.5 mi.

E-W

1000 AG

OF82-545

4041

80

D

Northeast Mt.-Western N.D.

3 mi.

E-W

4000 B

OF81-434

4055

81

D

Madison Range

0.75 mi.

E-W

12,000 B

OF82-946

4056

81

D

Ten Lakes

0.5 mi.

E-W

1000 AG

OF82-1084

4119

83

D

Butte

1 mi.

E-W

9000 B

OF84-278

4149

78

A

Stillwater '78

0.167 mi.

NE-SW

250 AG

OF84-799

6076

78

D

Southern Montana

3 mi.

E-W

400 AG

GJBX-081(79)+

6078

78

D

East Hamilton

3 mi.

E-W

400 AG

GJBX-119(79)

6082

78

D

Dubois-Ashton

3 mi.

E-W

400 AG

GJBX-106(79)+

6086

78

D

Northwest Montana NURE

6 mi.

E-W

400 AG

GJBX-126(79)

6087

78

D

North-central Montana

3 mi.

E-W

400 AG

GJBX-126(79)

6088

78

D

Lewistown NW-SE

6 mi.

E-W

400 AG

GJBX-126(79)

6093

78

D

Powder River II

3 mi.

E-W

400 AG

GJBX-082(79)

6122

79

D

Elk City

3 mi.

E-W

400 AG

GJBX-010(80)

6173

80

D

North-central Great Plains

6 mi.

E-W

400 AG

GJBX-068(81)+

6186

80

D

Miles City

3 mi.

E-W

400 AG

GJBX-180(81)

6188

80

D

Montana-North Dakota

6 mi.

E-W

400 AG

GJBX-179(81)+

1 Surveys refer to index map (USGS contract number) of magnetic surveys.

2 Data type: A, data exist in "analog" form only--subsequently, maps were digitized from published versions; D, data exist as original "digital" flight-line data.

3 Flight-altitude: AG, survey originally flown "above ground" in draped mode at a constant elevation above terrain; B, survey originally flown at constant "barometric" elevation.

4 Reference cited: References refer to published versions of the individual aeromagnetic surveys used in the compilation


Top || Montana mag || Minerals || Geology || USGS

U.S. Department of the Interior
U.S. Geological Survey

This page is <URL: https://pubs.usgs.gov/of/1998/ofr-98-0333/mt_indtab.html>
For more information about this report contact: Anne McCafferty
Last updated 07 Dec 2016