A related dad question:

My mid-20 age daughter will be graduating and taking a job in Arizona next year. I know she'll enjoy hiking the area. In addition to her carrying water and survival gear, if I were to give her a graduation gift, would you recommend a mapping GPS w/ electronic compass to help her get unlost, OR a personal locator beacon to help her get found for whatever life threatening situation??

As much as I'm a fan of PLB's, I lean toward the GPS for its flexible utility, but I fear that she'll leave the GPS behind while instead relying on a smartphone app (with local map saved). So maybe a PLB is more likely to end up in the backpack.

I'd get her both, but this in addition to gifting her a much wanted rifle ... while I can buy the particular style she wants.