(Chris Detrick | The Salt Lake Tribune) Sophie Mason, 5, plays along along Firebreak Road on Twin Hollow Mountain Wednesday October 28, 2015. In the background is Brandon Mason, 14, Lexie Mason, 8 and Kate Mason, 12. A pair of Utah developers are seeking a public land swap in the Bountiful foothills that they say will accommodate public access and conservation in two key spots. Some nearby residents, however, fear the plan would invite high-density residential growth in the wrong place.