It seems that the aliens did beam down to place this cache. Strangely, they came to say, "Happy Birthday Earthlings" with this cache. There is room for trade items in this letterbox but would appreciate it if the swag items are alien or space related. Please leave the Happy Face stamp in the container.
This is Arizona, so be watchful for all the things that can and will stick you, pick you or bite you. The road is dirt and along a canal with water, so watch your children carefully.