Olca is a stratovolcano on the border of Chile and Bolivia. It lies in the middle of a 15 km long ridge composed of several stratovolcanos. Cerro Minchincha lies to the west and Paruma to the east. It is also close to the pre-Holocene Cerro Paruma. It is andesitic and dacitic in composition, with lava flows extending several kilometres north of the peak. The only activity from the ridge during historical times was a flank eruption from 1865 to 1867. The exact source of this eruption is unclear.
You've got a problem, I think you know
I'll tell you mine before you go
You've been thinking about somebody new
That's not the issue
Secrets, I have some too
I'll tell you mine before I say goodbye to you
I've been thinking 'bout leaving too
That's not the issue
I'm leaving, I'm leaving now
I'd say goodbye, but I don't know how
You've been sleeping with somebody new