Weston's Pharmacy is the drugstore inside Colorado Mountain Plaza that Ellie checks first in Left Behind's Back in a Flash. It has been picked clean, but it is where the chapter's search for supplies starts.
The mall's pharmacist turned into a runner early in the outbreak. Someone who thought he was only sick locked him in another store, where he died with the pharmacy keys and a photo of his partner, and left a note explaining what happened.
A first aid kit is visible through the glass of the pharmacy's locked back door. Once Ellie has the key from the next-door store, she gets in only to find the kit empty and kicks it away. That is when she notices the military helicopter that has crashed through the roof outside.
Colorado Mountain Plaza
Colorado Mountain Plaza is the snowbound mall near Boulder where Ellie hunts for medical supplies in Left Behind's present-day chapters. You play Back in a Flash, So Close and The Enemy of My Enemy here, fighting both infected and hostile survivors.
University of Eastern Colorado
The University of Eastern Colorado is the Boulder campus where Joel and Ellie expect to find the Fireflies in The University chapter. You search it on horseback and on foot through the Go Big Horns and Science Building sections, and it holds 17 collectibles.