This location was discovered during the depression while the CCC were building the forest road. Over the next seventy years collectors discovered many of the finest alpine quartz specimens from North America here, making the Devil's Den a true classic locality. Take Mt. Tabor Road from Danby, park at Devil's Den picnic area, walk north along road to outcrops on east side of road. Excellent smoky quartz and other minerals are found in pockets in the local schist. https://www.mindat.org/loc-69594.html