A casual musterer on a farm near Gisborne was flown to hospital after the horse he was riding died underneath him as they descended a steep hillside.
Emergency services were alerted about 11am yesterday.
The 69-year-old horseman suffered neck, head and facial injuries in the mishap, at Rere, 50km north-west of Gisborne. He was flown to Waikato Hospital after being assessed at Gisborne Hospital's emergency department.
"He suffered serious eye and facial injuries," a Gisborne hospital spokeswoman said.
A St John ambulance was sent to the property on Rere Settlement Road when the alarm was sounded.