Filibuster Camp is the historic locale of a camp along the Gila River route of the Southern Emigrant Trail in Yuma County, Arizona, named in memory of a failed filibuster expedition to Sonora that began there in 1856.

Filibuster Camp acquired the name because it was the site from which Henry A. Crabb led an 1856 Crabb Invasion expedition into Sonora, Mexico, to try to take over the state of Sonora.

At the time Crabb was suspected of trying to conquer Sonora like the filibuster William Walker had done only a few years prior.

[2] One of the original Butterfield Overland Mail stage stations, Filibuster Camp Station was located nearby the old camp at 32°41′8.18″N 114°05′57.61″W / 32.6856056°N 114.0993361°W / 32.6856056; -114.0993361.

[6] The addition of these new stations decreased the distance between water stops and team changes in this desert region, something the company was also doing elsewhere in New Mexico Territory, California and Texas.