Optimum row (1=S tip of US, 277=N tip of US, click on help above for map) and potential movement, in km of the latitudinal optimum for quaking aspen

FIA-Optimum	187
PRD-Optimum	179
GISS-Optimum	206
GISS-Movement	270N
GFDL-Optimum	0
GFDL-Movement	Extirpated
HAD-Optimum	204
HAD-Movement	250N
UKMO-Optimum	0
UKMO-Movement	Extirpated
CCC-Optimum	0
CCC-Movement	Extirpated