Chisos Group:

Tule Mtn Trachyandesite			32 Ma
Mule Ears Spring Tuff			33
Bee Mtn Basalt				34-30  (interbedded with MEST and TMT)
Ash Spring Basalt			34.5
Alamo Creek Basalt			47-34.5

New stratigraphic names in Chisos Mtns:  South Rim Formation now includes the
Pine Canyon Rhyolite Member, the Boot Rock Member, and the Emory Peak Rhyolite
Member.

Burro Mesa Rhyolite --> Emory Peak Rhyolite, quartz-bearing rhyolitic ash-flow
			tuffs, 32 Ma. A series of E and NE trending dikes of
			chemically identical rock cut through Chisos Fm and
			younger rocks.
Wasp Spring Flow Breccia and Lost Mine Rhyolite --> Boot Rock Member, quartz
			trachyte to rhyolite lavas, ignimbrites, and maar
			surge deposits, ~32 Ma
Brown Rhyolite --> Pine Canyon Rhyolite, ignimbrite that formed Pine Canyon
			Caldera, 33-32 Ma

1338 - Pine Canyon
1339 - tuff and volcanics of Chisos Group.
1340 - Juniper Canyon. South Rim on right, Crown Mtn on left, unnamed mtn
	in distance
1341 - Looking across Juniper Canyon toward Casa Grande, Toll Mtn on left
1342 - Juniper Canyon and South Rim
1344 - S Rim and Toll Mtn separated by Boot Canyon with linear igneous
	intrusion that was part of intrusions around Pine Canyon Caldera, forming Hayes Ridge
	on other (NE) side of canyon
1346 - feet on Wasp Spring, back on dike, Pine Canyon in background with
	Crown Mtn in center, Lost Mine Pk on left. Drop off due to fault. Flat iron in
	distance may be of Pine Canyon (Brown) Rhyolite
1347 - Lost Mine Pk
1348 - Contact between WSFB (left) and dike (right), fault-formed cliff beyond
	backpack
1349 - Juniper Canyon. Elephant Tusk and Backbone Ridge in distance, unnamed mtns between ET and
	camera, Crown Mtn on left, Tortuga Mtn out of sight behind unnamed mtns and ET.
1350 - WSFB with strata containing a variety of clast sizes, poor resolution
1351 - Green Gulch. NE corner of Pullium Bluff left of center in distance