Gurio Lamanna (also incorrectly called Gurlamanna) is a doline shaped like a coat of arms located in the Murge plateau and falling into Gravina in Puglia's territory, on the border with Altamura, Apulia, southern Italy.

It is "one of the largest karst landforms of the Murge plateau"[2] and it is located very close to other two dolines, namely Pulicchio di Gravina and Tre Paduli.

[4][5] Carmelo Colamonico stated that Gurio Lamanna is "one of the best examples of karst basin in the Murge plateau".

[6] Close to the doline are the ruins of a small XX century primary school both for children and adults.

The doline (or "karst basin") was practically unknown among scientists and scholars until the first study published by Carmelo Colamonico in 1917.

The water coming from the relative drainage basin has slowly but constantly eroded (according to the usual double action - chemical and mechanical - of rainwater, typical of karst phenomena) the area, leading to the formation of the wide flat area full of fertile soil that is visible today.

Nevertheless, he noticed that today's dimensions would have never been reached if there had not been the double action of rainwater coming from such a large drainage basin (karst).