Tgfss
ss
NA
Lava flows and associated volcanic rocks of Gila Flat, sandstone member
Oligocene
Taa
Rhyolite of the Alum Mountain eruptive center
Ql
Landslide deposits
Holocene and/or Pleistocene
Qt
Alluvial terrace deposits
Holocene? and Pleistocene
Tgf
Tgf?
Lava flows and associated volcanic rocks of Gila Flat
Tbt
Bloodgood Canyon Tuff
QTg
Gila Group, aka Gila Conglomerate
Oligocene to Miocene
Source map labels as Tgfu
QTgps
ps
Gila Group, sandstone facies
Qf
Alluvial fan deposits
Holocene
Tao
Older ash-flow deposits, undivided
Tba
Bearwallow Mountain Andesite
Tmh
Andesitic to basaltic lava flows and flow breccia
Qa
Alluvium
??
water
not applicable
Tsp
Shelly Peak Tuff
Tmd
Andesitic to dacitic lava flows of the Middle Fork Gila River
QTg?
Qt1
Highest perched terrace deposits
Qt3
Lowest perched terrace deposits
Pleistocene
Twl
Qt2
Middle perched terrace deposits
Tav
Tsr
Volcaniclastic rocks of Adobe Canyon