In the Middle East, major archaeological sites are most frequently identified by mounds, or Tels, formed over the rubble of the previous occupation. Often, the site has been occupied several times over the centuries and a quite pronounced tel is evident.
In some cases, coins and small artefacts are actually found on or just below the surface. Erosion can uncover some near-surface archaeological evidence, while a simple metal detector can be used to find coins in locations where artefacts have already been found.
Satellite imaging can be used, sometimes in association with gravity measurements. In some cases, farmers uncover the evidence, and in some cases it is just luck
Archaeological digs are mainly underground because layers of soil and sediment build up over time, burying artifacts and structures from past civilizations. By excavating below the ground surface, archaeologists can uncover and study these buried remains to learn about the history and culture of previous societies.
The tomb of St. Peter is located below the main altar of the Basilica of St. Peter in Vatican City. The head of St. Peter, along with that of St. Paul, is located in the cathedral church of the pope - St. John Lateran.
Abutments are supporting structures that bear the load of a bridge or similar construction at the points where it meets the ground or other structures. They transfer the weight of the structure and any loads placed on it to the ground below, helping to stabilize and distribute the forces involved.
Two reasons. Most of the ground is permafrost. Meaning that the buildings sink due to heat collected under the building, the spring thaw and effects of climate change. The pilings can reach to solid ground up to twenty feet below the permafrost line. Also raising the buildings allows the building to be heated from below without the heat escaping into the ground (and sinking the building).
The deepest gold mine in Africa is the Mponeng mine, located in South Africa. It reaches a depth of around 4 kilometers (2.5 miles) below the surface. The mine is operated by AngloGold Ashanti and has been in production since 1986.
Archaeological digs are mainly underground because layers of soil and sediment build up over time, burying artifacts and structures from past civilizations. By excavating below the ground surface, archaeologists can uncover and study these buried remains to learn about the history and culture of previous societies.
Hades with Cerberus (below) is at the Greece, Heraklion Archaeological Museum.
A Swede grows below ground.
Below ground, just like a carrot.
Below ground
Above the ground
To locate gopher tunnels in your yard, look for mounds of dirt with a plugged hole in the center. Gophers create these mounds when they dig tunnels underground. You can also use a probe to gently poke the ground and feel for soft spots, which may indicate a tunnel below.
Above
Just below the United States.
They grow above ground. It is a stem plant.
The melted rock below the crust is magma. Above ground it is lava.
Magma