Domain Arrivals
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Featured in Domain Arrivals · 2026-08-10

UndergroundMines.com, an Atlas of What Lies Beneath

undergroundmines.com ↗ · Oddly Specific · score 79.0
○Open: public page gives enough substance to understand the site $Paid: pricing, booking, ecommerce, subscription, or paid access is visible ADAds: visible ad load or ad-supported content ✦Pretty: notable design, copy, craft, or presentation ◆Pro: polished, finished-feeling, serious, or operationally mature ◇Niche: specific audience, workflow, or unusually focused use case ◉Human: personal, local, community, civic, handmade, or real-person signal !Suspicious: scammy, spammy, trust theater, finance fog, or credibility concern

A community-built catalog of documented underground mines, shafts, adits, tunnels, and historic workings in California, Nevada, and Arizona.

Why it surfaced

The site claims 11,903 underground mine records, tracks source evidence and independent verification, and lets visitors browse by state, county, commodity, or coordinates. It is an unusually focused blend of historical research, mapping, community verification, and safety guidance—with exact locations reserved behind membership access.

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Ham Is Specifically Discouraged

August 10’s newborn domains include a mock cryptid council that specifically discourages ham, a vintage phone collecting messages for Twyla’s 70th, a 4.5-meter dish measuring Galactic hydrogen at 1420 MHz, and an open index that found 530 sites permitting GPTBot in robots.txt while refusing it at the server.

This is one of 1,000 discoveries in the 2026-08-10 Domain Arrivals issue.

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Deep Space 1420 MHz Radio Telescope deepspace1420.com

An amateur radio observatory in Mishawaka, Indiana, recording long-term measurements of Galactic neutral hydrogen with a 4.5-meter dish.

 Grave Symbols: Read What the Stone Is Saying gravesymbols.com

A source-backed visual field guide for identifying cemetery symbols, inscriptions, and monument forms.

 Check-in Film Turns Holiday-Home Instructions Into Two Short Films checkinfilm.com

A hospitality service makes one film guiding guests from the last recognisable landmark to the property, and another explaining how the house works.