The data below represent everything available in the MBMG Abandoned and Inactive Mines (AIM) database.

Sites Table
AIM Id Name Alternate Name District County
BE003920 MAY DAY MINE / MAYDAY & PAYDAY ARGENTA BEAVERHEAD
MRDS AMLI MILS Latitude Longitude Datum
01-129 300010420 45.3194 -112.8744
Township Range Section QSection UTM Northing UTM Easting UTM Zone UTM Datum
06S 10W 7 DCCC 5019929 353084 12
Average Elevation Elev Units Land Owner 250K Quad 100K Quad 24K Quad
7051 F NF DILLON DILLON ARGENTA
Property Type Update Date Who Updated
LODE 4/6/1995 JEW
Commodities Table
Commodities Identified
GOLD
LEAD
SILVER
Agency Info Table
Information
Agency: NF
Region District: R1
Ranger District: DILLON
Forest Service Tract:
Watershed Code: 10020002
Forest or Resource Area: BEAVERHEAD
Owner: N
Impact:
Report: May Day (BE003920) The May Day is an active mine consisting of multiple shafts, trenches, and pits; nine small dumps and one large dump are present (Geach, 1972). In 1994, all but a single shaft on the north end of the prospect were caved. Total surface disturbance is approximately 2 1/2 acres. The workings follow a mineralized shear zone in Precambrian Belt Quartzite and shale. The mineralized shear zone trends N12E and dips 38SE (Geach, 1972). The shear zone is characterized by gray to yellowish gouge containing lenses of quartz, pyrite, and lead (Geach, 1972). Fresh material from present activity is dark gray in color, muddy, and contains abundant pyrite. This site was discovered in 1934; production records exist from 1935 to present day. Total recorded production to 1961 was 754 tons of ore yielding 51,684 pounds lead, 1256 pounds zinc, 572 pounds copper, 4380 ounces silver, and 539 ounces gold. This is a dry site located on USFS land. Geach includes a plan view of the May Day workings in his 1972 publication.
Screening Criteria Table
Information
Mill Tailings: N
Adit Discharge: N
Metal Leaching: N
Water Erosion: N
Residence: N
Hazardous Materials: N
Open Adit: N
Visit: Y
Comments: MBMG GEOLOGIST: JACK WATSON (6/4/95); ACTIVE MINE; PHOTOS 2-5 AND 2-6
Rank Table
Information
Investigator: J. WATSON
Date: 6/4/1994
Photos Available?:
Access:
Nearest Wetlands/Bog:
Drainage Basin: SPRING GULCH
Water Contact Stream:
Nearest Surface Water Intake:
Number of Surface Water Intake(s) observed within 15 miles downstream:
Uses of Surface Water Intake(s) observed within 15 miles downstream:
Nearest Wells (miles):
Number of Wells within 4 miles:
Uses of Wells within 4 miles:
Nearest Dwelling (miles):
Number of Months Occupied:
Number of Houses within 2 miles:
Recreational Usage on Site:
Nearest Recreational Area (miles):
Name or Type of Recreational Area:
Safety Risk from Open Adit/Shaft:
Safety Risk from Highwall or Unstable Slopes:
Safety Risk from Unstable Structures:
Safety Risk from Chemicals:
Safety Risk from Solid Waste (includes sharp rusted items):
Safety Risk from Explosives:
Sensitive Environments within 2 miles of Site or 15 miles Downstream:
Population within 0-0.25 miles:
Population within 0.25-0.5 miles:
Population within 0.5-1 miles:
Population within 1-2 miles:
Population within 2-3 miles:
Population within 3-4 miles:
Public Interest:

End of report. Retrieved 4/27/2024 9:21:04 PM.

The preceding materials represent the contents of the databases at the Montana Bureau of Mines and Geology at the time and date of the retrieval. The information is considered unpublished and is subject to correction and review on a daily basis. The Bureau warrants the accurate transmission of the data to the original end user at the time and date of the retrieval. Retransmission of the data to other users is discouraged and the Bureau claims no responsibility if the material is retransmitted. There may be data in the request area that are not recorded at the Bureau.