Desert Well

Desert wells are sandstone structures that generate in desert biomes.

Generation
Desert wells generate only in desert biomes. They have a $1/1000$ or $1/500$ chance to be generated in any desert chunk, which makes them a rare sight. It is possible for a well to generate around a cactus. The well structure still generates with the "Generate Structures" option disabled.

$$, desert wells have a chance to generate in a cluster between 16 blocks.

Desert well generation is capped at the coordinate Y-128. If desert terrain is higher than Y-128, no desert well is generated.

Structure
Desert wells are built of sandstone blocks and slabs with a water source inside.

ID
As this is a terrain feature as opposed to a structure, its ID is namespaced.

Trivia

 * Desert wells are one of the five generated structures that do not have a loot chest (the others being swamp huts, fossils, nether fossils and ocean monuments). They also are the only single structure that is designed to hold water (not to be confused with a waterlogged structure).