. >> brittany heseltine: bring them! (/ whistles/ ) >> whitaker: ...like brittany heseltine, whose job is to watch over them all summer. and you're up here by yourself? >> heseltine: yes. just me, my horses, my three dogs, and a cat. >> whitaker: how long altogether? >> heseltine: it'll be about five months. >> whitaker: every day for those five months, brittany is out at dawn to check on the 600 or so cattle in her care. >> heseltine: first thing in the morning, you come out on a rise. and especially in the fall, the elk are bugling, and just talking to each other. >> whitaker: brittany earned her degree in veterinary science in 2019. this was her third summer as a range rider. it's really hard work. what's the attraction? what's the draw? i really can't describe what. but all winter long, i'm like, "oh, couple months more. couple months more, and then i'll be up at home." >> whitaker: her home for the summer was a small trailer in an isolated camp. off the grid, no running water, no cell service. at the start of last s