MARIPOSITE NO 87 occupies the southwest quarter of T.430S., R.660E., Sec. 29, SW — approximately 20.66 acres of federally administered land in Southeast Alaska, Alaska. Under the General Mining Act of 1872, this parcel is identified by BLM serial number AK106521558 and is subject to annual maintenance obligations of $165 or equivalent assessment work.
Southeast Alaska's Inside Passage contains documented hard-rock lode gold and placer deposits from the 1880s Juneau Gold Rush boom. The Treadwell complex on Douglas Island — comprising the Ready Bullion, Mexican, and Treadwell mines — flooded and closed in 1917; the Alaska-Juneau (A-J) mine operated until 1944, ranking among Alaska's most productive hard-rock operations. Modern prospecting has identified under-explored quartz vein extensions and paleochannel deposits in glacier-carved valleys. State-managed land requires Alaska DNR permits; Tongass National Forest surface lands fall under US Forest Service jurisdiction with BLM administering federal mineral entry. Seasonal maritime access limits field work; this region sees active small-scale placer and hard-rock exploration.
The nearest mapped access corridor, osm:8991278 (mapped off-road route), lies 9.8 miles from this claim's centroid. off-road vehicle clearance is required. Vehicle staging is feasible along the route shoulder outside claim boundaries before the final approach on foot.
497 active claims surround MARIPOSITE NO 87 within a 7-mile radius. The estimated open aliquot count is approximate — use the live map for precise 20-acre resolution.
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MARIPOSITE NO 87 is a 20.66-acre Lode Claim in Southeast Alaska, Alaska (AK), filed under BLM serial number AK106521558 in the Bureau of Land Management Mining Location Record System.
The legal description places this claim at T.430S., R.660E., Sec. 29, SW within the Public Land Survey System (PLSS). The aliquot designation SW identifies the specific 20-acre sub-parcel.
Under the General Mining Act of 1872 (30 U.S.C. § 22), claims on federal land are maintained by filing the annual maintenance fee or performing assessment work. Current BLM status: Active. 497 additional active claims exist within 7 miles.
To find open federal land adjacent to MARIPOSITE NO 87, AuthoriProspector overlays live BLM claims at 20-acre aliquot precision alongside USGS MRDS historic mine markers, BLM wilderness boundaries, and military no-go zones.
FIND OPEN GROUND. STAKE IT. FILE IT.
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