President Obama Creates the Largest Protected Area in the WorldWith the expansion of the Papahānaumokuākea Marine National Monument, President Obama further strengthens his environmental legacy. A New National Monument!Send a message to thank President Obama for naming Katahdin Woods and Water our newest national monument. Help Celebrate Our National ParksLooking for a National Park Service 100th anniversary T-shirt, national park notecards, a classic Sierra Club stainless steel camping cup, or other gear? We've got it! Sierra Club Outings -- Book Your Trip Today!Looking for a getaway? We've got 300+ ideas for you. Support Clean Energy, Get 4 Free LEDsSign up with Arcadia Power today and they'll send the Sierra Club a donation -- plus you'll receive 4 free LEDs.