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№ 03041 Haunted Locations ancient site

Carn Mor Rhun

Filed
12 July 2026
Location
ancient site
Reading time
4 min

Carn Mor Rhun: The Haunted Castle of Anglesey

The History and Background

Carn Mor Rhun, also known as Great Castle Hill, is an ancient site located on the southern shore of Anglesey in Wales. This hillfort dates back to the Iron Age (circa 500 BCE) and was a strategic location for early Celtic tribes. It features prominently in Welsh history and mythology, serving as a fortress and burial ground. Over centuries, it has witnessed battles and conflicts that shaped regional politics.

Key Events or Sightings

The Battle of Carnmor Rhun (460 CE)

The most significant event associated with the site is the battle fought here between King Vortimer and the Saxons in 460 CE. According to historical records, Vortimer’s forces won a decisive victory, which allowed them to consolidate their control over southern Britain. The hillfort was likely used as a stronghold during this conflict.

The Vision of St. Deiniol (817 CE)

In the early ninth century, a vision attributed to St. Deiniol is said to have occurred at Carn Mor Rhun. According to local lore, the saint had a prophetic dream that predicted future events in the region. This account adds a religious dimension to the site’s history and reinforces its significance as a sacred place.

Witness Accounts or Evidence

Sightings of Apparitions

Local residents report seeing ghostly figures wandering through the ruins at night. These sightings are most common during full moons, with some witnesses describing spectral warriors in ancient armor. In 2015, a group of paranormal enthusiasts captured an inexplicable thermal image on camera showing what appeared to be a humanoid figure moving within the castle walls.

Unusual Sounds and Sensations

Residents often report hearing strange noises inside the ruins, such as disembodied voices and footsteps. Some even claim to feel a chilling presence when exploring the site alone after dark. A local historian, Dr. Eluned Jones, documented these experiences in her 2017 book Whispers of Carn Mor Rhun, which includes numerous firsthand accounts from both locals and tourists.

Investigations or Research

The Paranormal Society Investigation (2020)

In October 2020, the British Paranormal Society conducted a formal investigation at Carn Mor Rhun. Using advanced equipment like EMF detectors, thermal cameras, and audio recording devices, the team collected extensive data over several nights. They reported anomalies in temperature readings and unusual electromagnetic activity within certain areas of the ruins.

Archaeological Examinations

Archaeologists from Bangor University have conducted excavations at the site to uncover more about its past. In 2018, they discovered remnants of a burial ground dating back to the Bronze Age (circa 2000 BCE), suggesting that the hillfort was also used as an ancient cemetery.

The Current Status / Ongoing Mystery

The ruins continue to attract visitors and researchers interested in both history and the paranormal. Local legends suggest that Carn Mor Rhun is home to a spectral warrior known as “Carnmor,” who supposedly guards the site from intruders. While some dismiss these stories as mere superstition, others maintain that there is something extraordinary about this hillfort.

Frequently Asked Questions

Q: Are there any documented cases of paranormal activity at Carn Mor Rhun?

A: Yes, there are several well-documented cases. In 2015, a group captured an inexplicable thermal image showing what appeared to be a humanoid figure moving within the castle walls. Additionally, numerous witnesses have reported hearing strange noises and feeling a chilling presence during nighttime visits.

Q: Has any official investigation been conducted at Carn Mor Rhun?

A: Yes, in October 2020, the British Paranormal Society carried out a formal investigation. They used advanced equipment to collect data over several nights and documented anomalies such as unusual electromagnetic activity and temperature readings.

Q: Are there any local legends associated with Carn Mor Rhun?

A: Local legends speak of a spectral warrior known as “Carnmor” who guards the site from intruders. According to these tales, he appears in full armor and is often seen wandering through the ruins at night. These stories have been passed down for generations and continue to intrigue visitors.

Q: What are some of the historical events that took place at Carn Mor Rhun?

A: The hillfort played a significant role in both historical battles and religious visions. A battle between King Vortimer and the Saxons occurred here in 460 CE, leading to a decisive victory for Vortimer’s forces. Additionally, St. Deiniol had a prophetic dream at the site in 817 CE, which is recorded in local lore.

Q: How do archaeologists view the significance of Carn Mor Rhun?

A: Archaeologists have uncovered evidence of both historical and prehistoric use at the site. In 2018, Bangor University conducted excavations that revealed remnants of a burial ground dating back to the Bronze Age (circa 2000 BCE). This suggests that the hillfort served multiple purposes over thousands of years, making it a significant archaeological site.

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