The US Mint has been producing promotional coins for a very long time now, but beyond all of the clad proofs and painted coins, there's always something special about the Silver and Gold collector-grade coins, both collectible and valuable in themselves. In light of the new US State Park "America the Beautiful" quarters, the mint has produced massive 5oz silver proofs of the the 5 2010 coins: Hot Springs, Yellowstone, Yosemite, Grand Canyon, and Mount Hood. The coolest things about these coins is that their size really allows you to see the detail in their proof strike.
See what the HSN guys have to say about these gorgeous silver proof coins: