| 11. | Crater Rim Drive is closed between the Observatory and Chain of Craters Road because of sulfur dioxide gas emissions.
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| 12. | Visitors to the West Rim Drive, an 8-mile route that ends at Hermits Rest, would get there by bus.
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| 13. | Rim Drive then descends to the Sun Notch trailhead where visitors can hike to another viewpoint overlooking the lake.
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| 14. | One of the main goals of the Rim Drive construction project was to blend the road into the natural environment.
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| 15. | Here, a steam railroad continues to take tourists to the canyon and shuttle buses transport them down West Rim Drive.
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| 16. | The section of Rim Drive between Rim Village and the North Entrance Road is known as " West Rim Drive ".
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| 17. | Rim Drive continues along the outer edge of Sun Meadow to a parking area in front of Vidae Falls, a cascade.
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| 18. | But the plan also would restrict cars inside historic Grand Canyon Village and eliminate cars from South Rim drives by 2010.
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| 19. | Visits are best in July and August, the only time snow melts sufficiently to open the park's 33-mile scenic rim drive.
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| 20. | The section of Rim Drive between Rim Village and the North Entrance Road is known as " West Rim Drive ".
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