Abstract: An emergency response system to alert authorities of a medical issue during an outdoor activity which comprises (a) a portable unit attached to the outdoorsman including an alert button, computer, memory device and power source; (b) a display located on an exterior of the portable unit having one or more buttons to navigate information shown on the display; (c) one or more antennae to communicate with an outside source (which can be GPS) to verify location and (d) means to alert authorities (radio, cellular or satellite) of a medical issue. The invention is also directed to a method comprising the steps of (a) attaching the portable unit, (b) navigating a display, (c) selecting a path, (d) verifying geographic location on a path, and (e) alerting authorities of a medical issue.