Anyone that shops through Amazon can make a donation to the ATC by just switching to Amazon Smile and designating the ATC as the charity. There is no cost to you and anyone can do it.
I got this acknowledgement recently
This is your quarterly AmazonSmile donation notification. Your charity, Appalachian Trail Conservancy, recently received a quarterly donation of $1,284.37 thanks to customers shopping at smile.amazon.com.
To date, AmazonSmile has donated a total of:
$19,814.04 to Appalachian Trail Conservancy
$183,120,221.33 to all charities
Thank you for supporting Appalachian Trail Conservancy by shopping at smile.amazon.com. You can track your impact throughout the year at your My Impact page.