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U.S. National Park Service - Experience Your America

Open source travel guide featuring up-to-date information on attractions, hotels, restaurants, travel tips and more. Free and reliable advice written by Wikitravellers from around the globe.

Top 10 Scenic Drives in the Northern Rockies. Discover the ultimate Rocky Mountain vacation guide, featuring the best of Montana, Wyoming, Idaho, Oregon, Washington, and British Columbia. Explore this all-new US and Canadian Rockies travel site.

Explore the updated online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of articles, biographies, videos, images, and web sites.

Latest weather radar images from the National Weather Service

Website for USGS Geology and Geophysics. Site contains information on research activities and products and staff.

Encyclopedia.com – Online dictionary and encyclopedia with pictures, facts, and videos. Get information and homework help with millions of articles in our FREE, online library.

American Rivers is leading the movement to keep our rivers healthy and free of river pollution to protect your clean water.

Tips for travel on USATODAY.com; your site for travel how to information. From international travel tips to packing tips, from summer travel tips to travel safety, answer all of your travel questions with USATODAY.com.

Western Gray Wolf: U.S. Fish and Wildlife Service

TripAdvisor - Unbiased hotel reviews, photos and travel advice for hotels and vacations - Compare prices with just one click.