Tiffany Yost

Affectionately known as “the Mound” by locals, Flower Mound in southeastern Denton County earns a lot of superlatives: Money’s No. 16 best place to live in 2018, Niche’s #14 best public schools in Texas, and CNN Money’s best places to retire. And yes, there is a mound. A 12.5-acre hill in the center of town.…