# The range is mid-Miocene ash-flow tuff and lava of a caldera complex, without the hydrothermal systems that…

> Most likely: The range is mid-Miocene ash-flow tuff and lava of a caldera complex, without the hydrothermal systems that made the district's gold; no…

Source: https://mysteriesdept.com/mysteries/lost-dutchman-mine/answers/ANS0D0G0FP84VA0/the-range-is-mid-miocene-ash-flow-tuff-and-lava-of-a-caldera  
Publisher: Mysteries Department  
Licence: CC BY 4.0 (credit Mysteries Department and link the page)  

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[Questions](https://mysteriesdept.com/questions)[Lost Dutchman's gold mine](https://mysteriesdept.com/mysteries/lost-dutchman-mine)[Can the Superstition Mountains hold a rich gold vein?](https://mysteriesdept.com/mysteries/lost-dutchman-mine/questions/QST0D0G0B9M1S49/can-the-superstition-mountains-hold-a-rich-gold-vein)Answer

Answer · Lost Dutchman's gold mine

# The range is mid-Miocene ash-flow tuff and lava of a caldera complex, without the hydrothermal systems that…

The range is mid-Miocene ash-flow tuff and lava of a caldera complex, without the hydrothermal systems that made the district's gold; no economic gold exists in it.

**Most likely** Answers **1** questionPublished0

## Where it stands

**Most likely** Its tests supported it: two pieces of evidence for, none against. It needs two reviews to be accepted.

## What it predicts

- Mapping shows tuff, dacite, rhyolite and basalt without mineralised veins of grade.
- Drilling and a century of prospecting find nothing.

## What would rule it out

- A documented gold vein of economic grade inside the wilderness.

## Evidence 2 for · none against

[The state survey maps one regional ash-flow sheet (Apache Leap Tuff, 18.58 Ma) from a single Superstition…](https://mysteriesdept.com/mysteries/lost-dutchman-mine/evidence/EVD0D0G0FY27GWN/the-state-survey-maps-one-regional-ash-flow-sheet-apache)

Established

FOR

[The wilderness has never proved mineralised near the surface; 1970s drilling near Woodbury found nothing;…](https://mysteriesdept.com/mysteries/lost-dutchman-mine/evidence/EVD0D0G0G5W0F6D/the-wilderness-has-never-proved-mineralised-near-the-surface)

Supported

FOR

## The questions it answers

[Can the Superstition Mountains hold a rich gold vein?](https://mysteriesdept.com/mysteries/lost-dutchman-mine/questions/QST0D0G0B9M1S49/can-the-superstition-mountains-hold-a-rich-gold-vein)

Most likelyThe range is mid-Miocene ash-flow tuff and lava of a caldera complex, without the hydrothermal systems that…

## Cite it

```
Mysteries Department. (2026). The range is mid-Miocene ash-flow tuff and lava of a caldera complex, without the hydrothermal systems that… [Answer ANS0D0G0FP84VA0]. https://mysteriesdept.com/r/ANS0D0G0FP84VA0
```

Key

**ANS** 0D0G0FP84VA0

Kind

Answer · hypothesis

Origin

Published

Version

1

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