Southwest Commonwealth Conservation Area

The Southwest Commonwealth was one of the thirteen commonwealths of the pre-War United States of America. Created in the early 21st century, it was comprised of the former states of Southern California, Nevada and Hawaii.

Mojave Wasteland
The Mojave Wasteland is a wasteland that comprises South Nevada. The Mojave Wasteland is having power struggles between the NCR invaders, Caesar's Legion tribals, and Mr. House. The Hoover Dam and New Vegas Strip are the main interests and concerns. Drug running and gang life is rampant in the area, as well as runaway creatures and hostile wildlife.

Core Region
The Core Region is a wasteland that comprises North Nevada, California and little part of South Oregon.

Known places

 * Core Region (Fallout, Fallout 2)
 * Anza-Borrego (Mentioned in Fallout: New Vegas)
 * Boneyard (Fallout)
 * Broken Hills (Fallout 2)
 * Cathedral (Fallout)
 * Dayglow (Mentioned in Fallout, Fallout 2 and Fallout: New Vegas)
 * Gecko (Fallout 2)
 * Hub (Fallout)
 * Irvine (Mentioned in Fallout: New Vegas)
 * Junktown (Fallout)
 * Necropolis (Fallout)
 * New Reno (Fallout 2)
 * Oak Creek (Mentioned in Fallout: New Vegas)
 * Owen's Lake (Mentioned in Fallout: New Vegas)
 * Sac-Town (Mentioned in Fallout: New Vegas)
 * San Onofre (Mentioned in Fallout: New Vegas)
 * Shady Sands (Fallout, Fallout 2)
 * Vault 13 (Fallout, Fallout 2)
 * Vault 15 (Fallout, Fallout 2)
 * Vault City (Fallout 2)
 * West Tek Research Facility (Fallout)
 * Mojave Wasteland (Fallout: New Vegas)
 * Area 2 (Fallout: New Vegas)
 * Boulder City (Fallout: New Vegas)
 * Caliente (Honest Hearts)
 * Camp Searchlight (Fallout: New Vegas)
 * Cottonwood Cove (Fallout: New Vegas)
 * Freeside (Fallout: New Vegas)
 * Goodsprings (Fallout: New Vegas)
 * Hoover Dam (Fallout: New Vegas, Van Buren)
 * Jacobstown (Fallout: New Vegas)
 * Nellis Air Force Base (Fallout: New Vegas)
 * New Vegas (Mentioned in Fallout, Fallout: New Vegas)
 * Nipton (Fallout: New Vegas)
 * Novac (Fallout: New Vegas)
 * Primm (Fallout: New Vegas)
 * Red Rock Canyon (Fallout: New Vegas)

Southern California Wasteland

 * Anza-Borrego (Mentioned in Fallout: New Vegas)
 * Boneyard (Fallout)
 * Cathedral (Fallout)
 * Dayglow (Mentioned in Fallout, Fallout 2 and Fallout: New Vegas)
 * Hub (Fallout)
 * Irvine (Mentioned in Fallout: New Vegas)
 * Junktown (Fallout)
 * Necropolis (Fallout)
 * Owen's Lake (Mentioned in Fallout: New Vegas)
 * San Onofre (Mentioned in Fallout: New Vegas)
 * Shady Sands (Fallout, Fallout 2)
 * Vault 13 (Fallout, Fallout 2)
 * West Tek Research Facility (Fallout)

Nevada Wasteland

 * Broken Hills (Fallout 2)
 * Gecko (Fallout 2)
 * New Reno (Fallout 2)
 * Vault 15 (Fallout, Fallout 2)
 * Vault City (Fallout 2)
 * Area 2 (Fallout: New Vegas)
 * Boulder City (Fallout: New Vegas)
 * Caliente (Honest Hearts)
 * Camp Searchlight (Fallout: New Vegas)
 * Cottonwood Cove (Fallout: New Vegas)
 * Freeside (Fallout: New Vegas)
 * Goodsprings (Fallout: New Vegas)
 * Hoover Dam (Fallout: New Vegas, Van Buren)
 * Jacobstown (Fallout: New Vegas)
 * Nellis Air Force Base (Fallout: New Vegas)
 * New Vegas (Mentioned in Fallout, Fallout: New Vegas)
 * Nipton (Fallout: New Vegas)
 * Novac (Fallout: New Vegas)
 * Primm (Fallout: New Vegas)
 * Red Rock Canyon (Fallout: New Vegas)

Appearances
Fallout, Fallout 2 and Fallout: New Vegas take place in the former Southwest Commonwealth. The canceled Van Buren was to feature places in this commonwealth as well.