While not necessarily concerning references to actual literary works (though Jane Eyre is available in one of the NFS cache boxes), some of the books in Firewatch are references to other franchises.
In NFS cache #307 (at the edge of the controlled burn area you explore on Day 77) is a copy of the book ‘’The Accidental Savior’’ by fictional author Terrence L. Greenbriar. This is the father of the protagonist in Fullbright Studios’ game Gone Home.
Metal Gear Solid
One of the books that Henry brings with him from Colorado to read during the summer is “The Patriots”, the shadowy organization behind many of the events in the Metal Gear Solid franchise. The book is written by Donald Anderson, also known as the DARPA Chief from MGS1, and the cover art depicts a star-spangle revolver, clearly referencing the title of MGS4: Guns of the Patriots.
In addition to the deer Henry sees while first hiking to Two Forks, there are several encounters with the fauna of the Shoshone that can be experienced during the game.
"Good First Day" - Complete Day 01. - Bronze
"Back to Work" - Complete Day 02. - Silver
"Someone's Out There" - Complete Day 76. - Gold
"Burn the Place Down" - Complete Day 77. - Gold
Firewatch - Complete Day 79. - Gold