Preorders usually arrive late September to early October and then I ship in order.
Size ~8x10" all on high quality cover paper, perfect for using the photos after for framing!
 
Equinoxes and solstices are also featured.
 
The American Calendar comes with the following parks: (from January to December)
Seattle Space Needle
Glacier Bay National Park
Shore Acres State Park
Shawnee National Forest 
Acadia National Park
Yosemite National Park
Ohio River Trail
Yellowstone National Park
Yellowstone National Park
Craters of the Moon National Monument
Petrified Forest National Park
Glen Echo Park