Next time you're in Grand Teton or Yellowstone national parks, ditch the maps and try a GAPERGUIDE. Available this August, the new GPS-enabled navigatornamed after a local slang term for touristssits on the dashboard and uses your exact position on any of the two Wyoming parks' collective 378 miles of roads to select and play one of 700 prerecorded interpretive audio segments through your car's sound system. "The parks' roads are so simple, you don't really need to know where you're going; you just need to know what you're seeing," explains system developer Will Ferguson, 36. Along with partner Katie Lee, 27, Ferguson spent a year gathering the raw material for the guide and then hired a comic to write the script and actors to record it. With facts like "The Chapel of the Sacred Heart was originally named Our Lady of the Tetons, until church members figured out what tetons really means," you'll find it at least as entertaining as waiting for Old Faithful to spew. The two plan to expand into other parks, starting with Glacier and Yosemite next year. $35 per day; www.gaperguide.com
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