America's National Parks: The Insider's Travel Guide
Rough Way: Yellowstone's Madison and Canyon campgrounds
The Madison campground is 16 miles from Old Faithful; the Canyon campground is less than a mile from the biggest canyon along the Yellowstone River. yellowstonenationalparklodges.com.
Rockin' HK Outfitters
Rockin' HK Outfitters runs 90-mile horse-and-mule excursions that almost guarantee bighorn sheep, elk and grizzly bear spottings. $4,400 for a 10-day trip; rockinhk.com or 406-333-4505.
Geyser at Yellowstone National Park, Wyoming. Photo © iStock.