The present disclosure is directed to a ground survey and obstacle detection system using one or multiple detection devices, such as aerial detection devices. Aerial detection devices are sent ahead of the primary vehicle to survey a territory and map out any obstacles. The aerial detection device is equipped with sensors to scan the ground below it and detect obstacles. The aerial detection device is not affected by or prone to triggering dangerous obstacles. The aerial detection device flies above the ground and may be configured to send a signal back alerting the primary vehicle to the existence of obstacles.