Northwest Fire units are currently en route to a technical rescue in the Tucson Mountains.
A female patient has been thrown off a horse, and has suffered serious injuries.
Crews are staffing at 4350 N Calle Cadenza off of Sweetwater and Oxbow to access the patient.
A stokes basket has been requested by the Engine Company on scene.
The patient will be extricated out of a 30 to 40 foot drop into a wash.