- Chert (Wikipedia)
Chert (/ˈtʃɜːrt/) is a hard, fine-grained sedimentary rock composed of microcrystalline or cryptocrystalline quartz, the mineral form of silicon dioxide (SiO2). Chert is characteristically of biological origin, but may also occur inorganically as a chemical precipitate or a diagenetic replacement, as in petrified wood.
- Del Campo Peak (summitpost.org)
Depending on the year, the trail to Gothic Basin should be clear and easy to follow to its end at Foggy Lake by the end of July. Make sure to bring a map and compass especially earlier in the season when snow makes the upper trail impossible to follow. The trail peters out when you reach Gothic Basin. There are several smaller tarns just below Foggy Lake that sometimes cause some confusion. You will know you have found Foggy by the large size of it. At the widest aspect it is about one third of a mile wide.