1. Trump Gets Information on Iran’s Nuclear Facility Deep Inside the Mountain

Pickaxe Mountain, constructed deep inside the mountain right next to Iran’s Natanz nuclear facility, is now under special scrutiny from U.S. President Donald Trump. On September 4, 2026, Trump said that the United States could strike the facility “very soon.” A Reuters report described Pickaxe Mountain as a fortified facility near Natanz, comprising two deep underground tunnel complexes.

The facility is important because,

it holds the answer to the future capability of Iran’s nuclear program, centrifuge infrastructure, and the storage and management of nuclear materials. None of these three can be easily targeted from outside.

2. Pickaxe Mountain Is Not a Facility Built Suddenly

First, one point needs to be made clear—construction of Pickaxe Mountain is not a new development. Satellite imagery has shown underground tunnel construction activities here for many years.

The facility is extremely close to Natanz. Therefore, its location itself is significant. Natanz is one of the major centers of Iran’s uranium-enrichment program. The construction of such a large and deep underground infrastructure next to that facility has naturally attracted the attention of international observers.

3. It Is Iran’s Centrifuge-Related Infrastructure

The issue of Pickaxe Mountain cannot be understood without taking Iran’s position into account.

Iran has said that the facility is being built for activities such as the production and assembly of advanced centrifuges.

In other words, the main issue here is not merely uranium enrichment; rather, it is the infrastructure for advanced centrifuge technology required for the enrichment program.

This is important because the capability of a country’s nuclear program does not depend solely on a single enrichment facility. Centrifuge production, components, research, and technological capabilities are also required.

4. The Importance of Pickaxe Mountain Increased After the 2025 Attacks

Pickaxe Mountain became even more important in international discussions after the United States and Israel attacked Iran’s major nuclear facilities in 2025.

The reason is that, after visible facilities such as Natanz were damaged, the question arose as to where different components of Iran’s nuclear infrastructure were located.

In July 2026, The Wall Street Journal reported that, according to an assessment by Israeli intelligence agencies, Iran may have moved thousands of uranium-enrichment centrifuges into the tunnels of Pickaxe Mountain the previous year. However, this is an intelligence-based claim; it has not been independently and fully verified.

Therefore, the most important aspect of this information is that Pickaxe Mountain is no longer merely a future construction project; it is now also linked to the question of preserving Iran’s existing nuclear infrastructure.

5. The Main Reason for Trump’s Concern

If Trump’s concern is explained simply, the issue comes down to this—

Even after the visible parts of Iran’s nuclear infrastructure have been damaged, if important technology, centrifuges, or production capacity are preserved in underground facilities such as Pickaxe Mountain, it cannot be said that Iran’s capability to rebuild its nuclear program has been completely eliminated.

This is where the phrase “nuclear rebirth” has its practical basis.

This is not a claim based on speculation that Iran is building nuclear weapons. Rather, it is a concern about Iran’s ability to rebuild the technological infrastructure of its nuclear program.

6. The IAEA’s Information Gap Makes the Issue More Important

The International Atomic Energy Agency, or IAEA, has stated in recent reports that there are gaps in updated information regarding access to Iran’s nuclear facilities and nuclear materials.

A September 1 Reuters report said that, following the 2025 attacks, the IAEA had not regained full access to several important Iranian nuclear facilities. At the same time, the agency also lacks a complete verification of the current status of Iran’s stockpile of uranium enriched to as much as 60 percent.

This makes the importance of Pickaxe Mountain even greater.

Because if what is inside a facility cannot be verified through international inspections, an information gap is created for the outside world.

7. What Is the Underground Structure of Pickaxe Mountain Like

Another practical feature of Pickaxe Mountain is its deep underground tunnel system.

A Reuters report referred to it as two deeply buried underground tunnel complexes.

The military and strategic value of such infrastructure is naturally high. Underground facilities are generally more protected from the external environment, and activities inside them are difficult to monitor from outside.

Therefore, one practical reason for Trump’s concern is that important Iranian nuclear infrastructure may be located in a place that is difficult to both monitor and strike militarily.

8. Pickaxe Mountain as the ‘Center of Iran’s Nuclear Rebirth’

Caution is necessary in the use of this phrase.

Based on publicly available and verifiable information so far, it can be said that—

Pickaxe Mountain is an important underground infrastructure facility associated with Iran’s nuclear program.

However, there is currently no confirmed, independently verified public information that full-scale uranium enrichment or nuclear-weapons production is taking place there.

Therefore, the phrase “center of nuclear rebirth” can most reasonably be understood as—

a potentially important infrastructure facility for rebuilding the technological and industrial capabilities of Iran’s damaged nuclear program.

9. Significance of Trump’s New Concern

When Trump said on September 4 that the United States could strike Pickaxe Mountain “very soon,” he essentially brought the facility publicly into focus as an important potential target of current U.S. policy toward Iran and its nuclear strategy.

This has made one thing clear:

For Washington, Iran’s nuclear program no longer means only Natanz or Fordow; new underground infrastructure and the capacity to produce nuclear technology are now equally important.

This indicates a new phase in the Iran-U.S. nuclear confrontation.

10. What Does the Real Picture Look Like

When the current information is placed side by side, the picture looks like this:

First, Pickaxe Mountain is a large, deep underground facility near Natanz.

Second, tunnel construction and infrastructure work have been underway there for many years.

Third, Iran has described it as centrifuge-related infrastructure.

Fourth, an Israeli intelligence assessment has claimed that centrifuges were moved there; however, this has not been fully independently verified.

Fifth, the IAEA is currently unable to fully verify Iran’s nuclear materials and certain facilities.

Sixth, against this backdrop, Trump has publicly identified Pickaxe Mountain as a potential target for a U.S. strike.

These six facts alone are sufficient to understand the current significance of Pickaxe Mountain.

11. Iran’s Technologically Remarkable Capability

There is no need to exaggerate Trump’s concern over Pickaxe Mountain. The actual developments are significant enough.

After Iran’s major nuclear facilities were damaged, the question has now arisen—how much of Iran’s technological capability in its nuclear program remains, and how much of it can be rebuilt.

Pickaxe Mountain has emerged at the center of this question.

Where Natanz is a symbol of Iran’s old nuclear infrastructure, Pickaxe Mountain has emerged as a symbol of new underground infrastructure and technological capability.

Therefore, Trump’s concern is not actually about a mountain.

The concern is whether, even after striking the visible parts of Iran’s nuclear program, it will be possible to completely halt that program if its technological foundation survives in new underground infrastructure.

That is why Pickaxe Mountain is now one of the most important new names in the Iran-U.S. nuclear equation.