Greyhound Gulch Road is a hiking, biking, and horse trail in Pennington County, South Dakota. It is within Black Hills National Forest. It is 2.5 miles long and begins at 4,504 feet altitude. Traveling the entire trail is 4.9 miles with a total elevation gain of 746 feet. The Elta Mine (elevation 4,577 feet), Confidence Mine (elevation 4,390 feet), and King Mica Mine (elevation 4,465 feet) quarries can be seen along the trail.
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