Small city, BIG ammenities! That is Hidalgo, Texas. The City of Hidalgo is located on lands settled by Spanish -colonizer Jose de Escandon in 1749, as an adjunct to the new settlement of Reynosa, both part of colonial Spain until 1821. The desert settlement was mainly involved with cattle grazing for some 150 years.
When something changes phase from solid to liquid, or from liquid to gas, it takes energy to break the intermolecular interactions. These interactions between the water molecules are what make it solid. When you have ice, these interactions are strongest, which is why ice is hard.
These changes of phase always occur with a change of heat. Heat, which is energy, either comes into the material during a change of phase or heat comes out of the material during this change. However, although the heat content of the material changes, the temperature does not.