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| Ajo Mountain Drive - 2x4 Roads | | The drive is a 21 mile loop within Organ Pipe Cactus National Monument in southern Arizona. The drive goes through mountainous desert that takes 1-2 hours. It is passable for a passenger car and the surface is maintained dirt or gravel. Trailers are not recommended on these roads. |
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| Canelo Hills Loop Drive - 2x4 Roads | | The drive is southeast of Tucson and goes from Sonoita to Patagonia through grasslands and canyons. Historic ranching and mining country with broad grasslands and distant buttes provide the setting for this medium length loop drive. |
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| Carr Canyon Road (Forest Road 368) - 2x4 Roads | | This narrow, winding road was built at the turn of the century to open up the Carr Reef to gold and silver mining. Here visitors will find the Reef Townsite Loop Trail, Reef Townsite Campground and Ramsey Vista Campground. |
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| Harshaw Road (Forest Road 49) - 2x4 Roads | | A historic mining district that extends along the bottom of a sycamore shaded canyon is the focal point of this short and easy drive. |
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| Organ Pipe Cactus National Monument - Scenic Drives In National Parks | | This monument exhibits an extraordinary collection of plants of the Sonoran Desert, including the organ pipe cactus, a large cactus rarely found in the United States. |
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| Puerto Blanco Drive - 2x4 Roads | | This drive circles the colorful Puerto Blanco Mountains and passes through a startling variety of scenery. The drive is 53 miles within Organ Pipe Cactus National Monument in southern Arizona. The drive goes through mountainous desert that takes 2-3 hours. It is passable for a passenger car and the surface is maintained dirt or gravel. Trailers are not recommended on these roads. |
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| Saguaro National Park Cactus Forest Loop Drive - 2x4 Roads | | The 8.0 mile Cactus Forest Drive winds through the heart of an extensive saguaro forest and offers a close leisurely look at a variety of Sonoran Desert life. This one-way road, which begins at the visitor center, is paved. |
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