An unknown number of lode claims were staked, apparently for unspecified radioactive minerals, in 1956 (U.S. Bureau of Mines, 1979).
Location: The approximate location of the Zimovia occurrence, known in 1981 (Elliott and Koch, 1981, p. 7, loc. 8) only from a U.S. Bureau of Mines claims map (U.S. Bureau of Mines, 1979), is at sealevel on the north shore of upper Bradfield Canal, in Section 25. It is about 2 miles due east of the mouth of Harding River. The location is probably accurate to within about a quarter of a mile.
Geology: The country rocks in the general area of this unverified mineral occurrence are migmatite, orthogneiss, and subordinate paragneiss of Mesozoic or Paleozoic age (Koch, 1996, 1997). No other geological information about this occurrence was publicly available in 1997 (Koch, 1997).

Commodities (Major) - Radioactive(?) minerals
Development Status: None

List of minerals for each chemical element

Other Databases

Link to USGS - Alaska:	BC008

Other Regions, Features and Areas containing this locality

North AmericaContinent

Coast MountainsMountain Range

North America PlateTectonic Plate

Taku DomainDomain
Yukon-TananaVolcanic Arc

USA

Alaska
- ⭔Wrangell-Petersburg Census AreaBorough

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Elliott, R.L., and Koch, R.D., 1981, Mines, prospects, and selected metalliferous mineral occurrences in the Bradfield Canal quadrangle, Alaska: U.S. Geological Survey Open-File Report 81-728-B, 23 p., 1 sheet, scales 1:250,000 and 1:63,360. Koch, R.D., 1996 [In press), Reconnaissance geologic map of the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report, 1 sheet, scale 1:250,000. Koch, R.D., 1997 [in press], Metalliferous mineral resource potential in the Bradfield Canal quadrangle, southeastern Alaska: U.S. Geological Survey Open-File Report, 1 sheet, scale 1:250,000. U.S. Bureau of Mines, 1979, Claim map 118: Mines and prospects of the Bradfield Canal quadrangle, Alaska: U.S. Bureau of Mines Open-File Report 20-73, 1 sheet, scale 1:250,000.

Quick NavTop Other Databases Other Regions References

Mindat.org® is an outreach project of the Hudson Institute of Mineralogy, a 501(c)(3) not-for-profit organization. Mindat® and mindat.org® are registered trademarks of the Hudson Institute of Mineralogy.
Copyright © mindat.org and the Hudson Institute of Mineralogy 1993-2026, except where stated. Most political location boundaries are © OpenStreetMap contributors. Mindat.org relies on the contributions of thousands of members and supporters. Founded in 2000 by Jolyon Ralph and Ida Chau.
Content on this site may not be used to train, fine-tune, or otherwise develop artificial intelligence or machine learning models without prior written permission - see our Terms & Conditions.
To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
Privacy Policy - Terms & Conditions - Contact Us / DMCA issues - Report a bug/vulnerability Current server date and time: October 21, 2026 15:35:49 Page updated: August 28, 2025 05:45:57

Go to top of page