Yosemite’s special response team and special agents joined officers from the US Forest Service, the Mariposa County Sheriff’s Office, the Bureau of Land Management and a CAMP eradication team to investigate and eradicate three marijuana plantations in the Merced River Canyon on the park’s western boundary on 9 and 10 August 2006.[1][2] The gardens had been spotted by park agents and sheriff’s deputies during reconnaissance flights with the California National Guard in July.[1]

The two raids netted 12,451 marijuana plants with an estimated street value of about $35,720,000.[1] Two of the gardens had suspects in them, but both eluded apprehension, and officers seized two firearms from the gardens.[1] Evidence collected in the gardens was expected to help curb international marijuana cultivation on public lands.[1]