A sinkhole is a depression or hole in the ground caused by some form of collapse of the surface layer.

Sinkholes are most common in what geologists call, “ karst terrain.” These are regions where the types of rock below the land surface can naturally be dissolved by groundwater circulating through them.

Jul 3, 2024 · A sinkhole is a hole in the ground that forms when water dissolves surface rock. This sinkhole sits in the Yucatan Peninsula in Mexico. Natural sinkholes in limestone, like this one, are …

Mar 12, 2025 · Get sinkhole facts in geology. Learn about the different types of sinkholes, how they form, and how to repair or escape from one.

Mar 13, 2026 · Learn how sinkholes form, the three main types, and what warning signs to watch for on your property before the ground gives way.

Apr 9, 2026 · Sinkholes are depressions that form when the underlying limestone bedrock is eroded or dissolved by groundwater.

3 days ago · They can both swallow your tire, or even your car, but potholes and sinkholes are not the same things. Allow us to explain. One is a surface problem; the other starts deep underground. …

Oct 14, 2025 · Learn what causes sinkholes, how to spot them, the types that exist, and famous U.S. sinkholes that made headlines.

Apr 8, 2024 · Sinkholes happen when a cavity starts to grow underground. It expands over time, but the soil on the surface is strong enough to hold together and form a “ceiling” over the cavity.

Dec 4, 2024 · The search has revived national concern about the unpredictability of sinkholes. Here's what you should know about sinkholes, how they're created and where they can happen.