| Principal periods worked | 1890, 1907-10, WWII, 1957. |
|---|---|
| Workings | Numerous cuts, pits, shafts, adits in area 200 by 800. |
| Description of muscovite | Green, rent, rules, stained |
| Production | Moderate sheet |
| Strike | NW |
| Dip | NE |
| Relation to wallrock | Partly discordant |
| Wallrock | Hornblende gneiss |
| Extent of weathering | Weathered |
| Remarks | Kaolinized F-Q-M wall zone; Q core, discontinuous. |
| Source of information | USGS, Sterrett (1923, p. 183) |
| WWI | World War I |
| WWII | World War II |
| int | intermittent |
| Small | < 500 lb |
| Moderate | 500-10,000 lb |
| Large | > 10,000 lb |
| D | depth |
| L | length |
| T | thickness |
| avg | average |
| B | biotite |
| F | feldspar |
| M | muscovite |
| P | perthite |
| Pl | plagioclase |
| Q | quartz |
| CMC | Colonial Mica Corporation |
| DMEA | Defense Minerals Exploration Administration |
| OME | Office of Minerals Exploration |
| USGS | U.S. Geological Survey |
| OF | USGS open-file reports and maps |