Bitter Springs Recreation Area - Bitter Springs Recreation Office

In the room to the south, on a desk near a paperweight and a broken terminal. Note that Bitter Springs and Bonne Springs are not the same area, and that Bitter Springs Recreation Area is not a sub-area of Bitter Springs. It’s got its own map marker and everything.

Silver Peak Mine - Silver Peak Mine Shack

Along the northeastern wall of the shack you’ll find some lockers. This book is inside one of the bottom lockers, near the floor. Note that the Silver Peak Mine itself contains the Remnant Helmet, which is yours for the taking… if you’re up to fighting some Cazadores, that is.

The Prospector’s Den

Inside the actual den, in the middle room. The book is on the floor by the bed in the north eastern corner of the room.

Wolfhorn Ranch

Inside the ranch you you’ll find this book, on the floor near the fridge.

[Lonesome Road] Hopeville - Hopeville Men’s Barracks

In the southern corner of this v-shaped building, in the south-western-most bathroom stall. This book is on the floor, under a wooden crate.