| September 27, 2007 | Woodland Trail, Chincoteague National Wildlife Refuge, Virginia | 2.0 miles |
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| September 25, 2007 | Back Bay East Dike and Bay Trail, Back Bay National Wildlife Refuge, Virginia | 5.6 miles |  |
| September 21, 2007 | Jenny Lake and Inspiration Point, Grand Teton National Park, Wyoming | 6.3 miles |  |
| September 19, 2007 | Storm Point Trail, Yellowstone National Park, Wyoming | 2.3 miles |  |
| September 17, 2007 | Yellowstone Picnic Area Trail, Yellowstone National Park, Wyoming | 3.8 miles |  |
| September 17, 2007 | North Rim Trail, Yellowstone National Park, Wyoming | 2.8 miles |  |
| September 15, 2007 | Buffalo Point Trail, Antelope Island State Park, Utah | 1.0 miles |  |
| August 19, 2007 | Doyles River Loop, Shenandoah National Park, Virginia | 7.3 miles |  |
| July 22, 2007 | Rapidan Loop, Shenandoah National Park, Virginia | 7.4 miles |  |
| July 1, 2007 | Dark Hollow Rose River Loop, Shenandoah National Park, Virginia | 5.8 miles |  |
| June 10, 2007 | Sugarloaf-Keyser Fire Road-Hogback Loop, Shenandoah National Park, Virginia | 5.0 miles |  |
| May 28, 2007 | Ragged Mountain Natural Area, Charlottesville, Virginia | 4.1 miles |  |
| May 20, 2007 | River Trail, Dutch Gap Conservation Area, Virginia | 2.0 miles |  |
| May 15, 2007 | Virginia Creeper Trail, Damascus, Virginia | 6.2 miles |  |
| May 6, 2007 | South River Falls Trail, Shenandoah National Park, Virginia | 3.5 miles |  |
| May 28, 2006 | Wildlife Loop, Chincoteague National Wildlife Refuge, Virginia | 3.7 miles |
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| November 11, 2005 | Big Run Loop, Shenandoah National Park, Virginia | 5.7 miles |
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| July 21, 2005 | Arivaca Cienaga, Arizona | 1.6 miles |
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| July 19, 2005 | Sycamore Canyon, Arizona | 8.4 miles |
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