This successful event, highlighting the centenary celebration of US National Parks Service has attracted over half a million QSLs.
A mixture of activator teams got together, young and old, and cross generation family groups including Bill Jourdain, AB4BJ, who got together with 17-year-old Ruth Willet, KM4LAO, and her mom, Sharon, KM4TVU, to activate Chickamauga and Chattanooga National Military Park.
During the period between July 28-August 3, the schedule shows 43 activations, including the rare Channel Islands National Park in California, and the even rarer Denali National Park in Alaska.
There is expected to be a peak inactivity around the 25th August (the actual centenary day)
National Parks on the Air - https://npota.arrl.org/