Lahun Pyramid (Pyramid of Senusret II) at el‑Lahun, Fayoum
Fayoum • el‑Lahun (Illahun) • 12th Dynasty (Middle Kingdom)

Lahun Pyramid (Senusret II) at el‑Lahun

The Lahun Pyramid is the funerary monument of Senusret II (also written Senwosret II), a king of Egypt’s 12th Dynasty. Built near the entrance to the Fayoum depression, the complex is famous for three things: (1) its mudbrick superstructure anchored on a limestone outcrop, (2) a hidden entrance on the south side designed to frustrate tomb‑robbers, and (3) the nearby planned settlement of Kahun, which produced the celebrated Lahun papyri and rich evidence for Middle Kingdom daily life.[1][2]

Simplified layout & hidden entrance

Illustrative • not to scale

Unlike many Old Kingdom pyramids, the main entrance at Lahun is not emphasized on the north face. Excavators identified a southern entrance and passage system that leads to the burial chamber—one of several Middle Kingdom strategies for confusing intruders.[4]

mudbrick mass limestone outcrop S entrance burial chamber N

The drawing highlights two “signature” features: the outcrop‑anchored core and the southern approach to the internal chambers. The real corridors are longer and more complex, but the concept is the same.[1]

Quick facts

A fast orientation to the Lahun Pyramid complex and the surrounding Middle Kingdom landscape.

Location

el‑Lahun (Illahun), at the mouth of the Fayoum depression, south‑west of modern Fayoum (Al‑Fayyum Governorate).

Builder

Pharaoh Senusret II (Senwosret II), 12th Dynasty (Middle Kingdom).[1]

Construction

A mudbrick pyramid built around/over a limestone outcrop, once faced with fine limestone casing. Approx. 48.6 m high with a base around 106 m (values vary by measuring method).[7]

Why it matters

Famous for the hidden southern entrance, the planned town of Kahun, the Lahun papyri, and the nearby princess tomb treasures (e.g., jewelry).[2][5]

Encyclopedic guide

Use the tabs to navigate: history, architecture, Kahun, discoveries, research history, and practical travel notes.

1) What is the Lahun Pyramid?

The Lahun Pyramid is the royal funerary complex of Senusret II, a major ruler of the Middle Kingdom’s 12th Dynasty. Unlike the classic limestone giants of the Old Kingdom, Lahun’s core is largely mudbrick, built over a natural limestone rise to save labor and stabilize the mass.[7]

Why build here?

  • Fayoum gateway: el‑Lahun sits where the Nile Valley opens toward the Fayoum depression, a strategic zone for agriculture and administration.
  • Pyramid + town: the complex included a planned settlement (Kahun) that housed workers and officials, leaving unparalleled records of daily life.[3]
  • Middle Kingdom innovation: designers experimented with entrance placement, materials, and internal security measures.

Names you’ll see

  • el‑Lahun / Illahun: modern and older spellings for the area.
  • Kahun: the “pyramid town” settlement associated with the complex (Petrie used the name widely).[4]
  • Senusret II / Senwosret II: two common transliterations of the king’s name.

In one sentence: Lahun is a Middle Kingdom royal pyramid complex where architecture, urban planning, and written archives intersect—making it one of Egypt’s richest “whole‑landscape” sites for history lovers.[2]

2) Architecture & plan

The pyramid’s visible ruin can look modest today because the fine outer casing is gone, exposing the mudbrick core. Yet the engineering concept is sophisticated: a core anchored on a limestone rise, with internal retaining walls and a controlled casing foundation trench to reduce the risk of collapse in rare desert rain events.[7]

Key design choices

  • Mudbrick superstructure: cheaper and faster than massive limestone blocks, but still able to reach monumental scale.
  • Outcrop anchor: a natural limestone “hill” reduces needed volume and helps support the core.
  • South entrance strategy: the entrance and approach were designed to be less obvious from the front, making tomb‑robbery harder.[4]
  • Complex layout: temple areas, enclosure walls, and subsidiary structures complete the ritual landscape.

What survives on site?

  • The pyramid mound with exposed mudbrick core.
  • Remains of the enclosure and associated installations (foundations and traces).
  • North‑side subsidiary structures and nearby tombs connected to the royal family and court.[5]

How the “hidden entrance” works (conceptually)

Middle Kingdom architects increasingly experimented with non‑standard entry routes. At Lahun, the approach to the corridors is associated with the pyramid’s south side, while ritual focus (temple) remains conventionally on the east. This separation between ritual front and functional access is a hallmark of later pyramid security design.[4][7]

3) Finds & evidence

The wider Lahun landscape is famous for two types of evidence: elite burials linked to the royal house and the paper archives found around the town and temple areas.

Princess tomb treasures

Excavations in the area uncovered richly furnished burials associated with royal women, including spectacular jewelry caches often referred to as the Treasure of el‑Lahun.[5][6]

  • Gold inlays and stone settings (turquoise, carnelian, lapis lazuli) in refined Middle Kingdom style.
  • Royal insignia elements that help identify status and family connections.
  • Detailed publication history that lets historians reconstruct how the caches were stored and recovered.[6]

The Lahun papyri

The settlement and pyramid complex produced one of the largest surviving groups of Middle Kingdom papyri, spanning administrative records, temple accounts, and everyday documentation—especially from the reigns after Senusret II.[2]

  • They illuminate work organization, resource management, and cult administration.
  • They anchor the town’s life to specific reigns and institutions.
  • They pair with the house plans to give an unusually “complete” picture of a working community.

If you love “history you can touch,” Lahun is ideal: you can stand by the pyramid and then mentally “walk” into the adjacent town, comparing architecture, objects, and texts from the same landscape.[3]

4) Kahun & the Fayoum landscape

Kahun is one of Egypt’s best‑known “pyramid towns”—a purpose‑built settlement tied to a royal funerary complex. Its housing blocks, streets, and neighborhoods make it a key reference point for Middle Kingdom urbanism.[3][4]

What was the town for?

  • Housing for workers, administrators, and officials connected to the pyramid and its cult.
  • Storage and distribution of supplies (food, tools, textiles) for the institution.
  • A place where written documentation could accumulate and be discarded—creating the papyri record we have today.[2]

Why Fayoum is special

The Fayoum oasis region is a unique ecological and agricultural zone connected to the Nile by channels. Middle Kingdom kings invested heavily in the area; placing a royal pyramid at el‑Lahun signals how important the region was to state planning and prosperity.[4]

For modern visitors, this means you can combine Lahun with other Fayoum sites and landscapes—desert edges, fields, and lake‑region routes—within the same day.

Museum note

Many objects from Lahun/Kahun—tools, personal items, and daily‑life objects—are featured in museum collections and research projects, helping you “extend” your visit beyond the site itself.[3]

5) Excavations & research history

el‑Lahun and Kahun became famous through late‑19th‑century excavation and publication. W. M. Flinders Petrie worked at the pyramid and the town, producing foundational plans and reports that scholars still consult.[4]

Key publications (classic)

  • Petrie’s report volumes document the town, the pyramid landscape, and early interpretations.[4]
  • Later publications focused on the treasure burials and specialist material studies.[5][6]

Modern scholarship

Modern work revisits Petrie’s plans with new methods (survey, materials analysis, and social/urban studies), and museum collections continue to publish and reinterpret objects and archives from the site. Digital Egypt and museum projects make many datasets accessible for study.[2][3]

6) Visiting notes (practical)

Lahun is typically visited as part of a Fayoum day trip or multi‑site itinerary. Conditions and access can change, so treat practical notes as guidance and confirm locally when planning.[3]

Getting there

  • From Cairo, drive toward Fayoum and continue south/east toward el‑Lahun.
  • Many travelers combine Lahun with nearby Middle Kingdom sites (and Fayoum landscapes) in one route.
  • Consider a private driver/guide if you want multiple stops efficiently.

Best time & comfort

  • Best seasons: October–April for cooler temperatures.
  • Bring water, sun protection, and closed shoes (sand and rubble).
  • Mid‑day light can be harsh; early morning is best for photography.

On-site etiquette

  • Stay on visible paths and avoid climbing fragile mudbrick faces.
  • Photography rules can vary; ask at the entrance if in doubt.
  • Respect excavation areas and any barriers or signage.

Pro tip: pair your visit with a museum “follow‑up” (Petrie Museum / online collections) to see objects from Kahun and the treasure burials after walking the landscape.[3][6]

FAQ

Common questions about the Lahun Pyramid (Senusret II) and the Kahun landscape.

It was built for Senusret II (Senwosret II), a king of Egypt’s 12th Dynasty in the Middle Kingdom.[7]
Middle Kingdom architects often experimented with less obvious access routes to reduce tomb‑robbery. At Lahun, the functional entrance and passages are associated with the south, while ritual elements remain oriented conventionally toward the east.[4]
The Lahun Pyramid is largely mudbrick, built over a limestone outcrop and once faced with fine limestone casing. The casing was later removed, which is why the pyramid looks “eroded” today compared with Old Kingdom stone pyramids.[7]
Kahun is the planned settlement associated with the Lahun pyramid complex. It’s famous because excavations revealed a clear street layout, house types for different social levels, and an exceptional range of objects and papyri documenting Middle Kingdom life.[3][2]
These are jewelry and elite burial finds from tombs in the wider complex area, published in detail in early 20th‑century reports. They include intricate gold work and inlaid stones, and they are crucial for dating and understanding Middle Kingdom craftsmanship.[5][6]
Access policies can change with conservation and local administration. When planning a trip, confirm locally (or through your guide/driver) whether interior access is permitted on your visit date. The exterior and the wider landscape (pyramid area and town remains) are often the core of the experience.

Sources & references

Numbered references used for key claims on this page. Accessed 2026-02-14.

Online (reference / institutional)

  1. [1] Wikipedia, “Pyramid of Senusret II” (overview: construction, dimensions, entrance discussion, key bibliography). Open
  2. [2] UCL Digital Egypt for Universities, “The Lahun Papyri” (overview of papyri groups and context). Open
  3. [3] UCL Petrie Museum of Egyptian Archaeology, “One Day in Lahun” (site highlights and daily-life finds). Open
  4. [4] W. M. F. Petrie, Illahun, Kahun and Gurob: 1889–1890 (1891) – Internet Archive scan. Open

Books / specialist references

  1. [5] Guy Brunton, Lahun I: The Treasure (1920) – ETANA PDF / archival scan. Open
  2. [6] H. E. Winlock, The Treasure of el Lahun (1934) – Oriental Institute (University of Chicago) PDF. Open
  3. [7] Mark Lehner, The Complete Pyramids (Thames & Hudson, 2008) – synthesis for dimensions, plans, and comparative context.

Note: transliterations vary (Senusret/Senwosret; Lahun/Illahun). Where numeric measurements differ across publications, this page presents rounded, “visitor-friendly” values and points you to the cited references for precision.