Create a signal visible from the air. Lay out brightly-colored clothing in a forest clearing. Use a signal mirror. Cell Phones - Do not depend on a cell phone to help you in an emergency. Come prepared to meet wilderness on its own terms.
Many visitors enjoy wild places, away from civilization.
Many backcountry visitors seek the classic wilderness values of risk, solitude and challenge. Use of cell phones, for anything other than serious emergencies, detracts from the character of wilderness. And keep in mind that it is next to impossible for a dispatcher to give directions to a lost person calling on a cell phone. Route-finding and safety skills are paramount in the wild. Cell phone coverage is very patchy in much of the interior and coastal areas of the park.