A method of implementing a lightweight, electronic ear tag allows for location tracking and geo-fencing tasks of a herd animal. A location-tracking device tracks spatial-positioning data of electronic ear tag. A communication node relays the spatial-positioning data to at least one remote server hosting an owner account that allows the owner to interact with the electronic ear tag. Accordingly, the spatial-positioning data is relayed from a low-power transceiver to a low-power gateway, if the electronic ear tag is in communication with the communication node. If the electronic ear tag is not in communication with the communication node, the spatial-positioning data is archived and store locally in the electronic ear tag. A high-power gateway provided at the communication node relays the spatial-positioning data to the remote server. Accordingly, the remote server generates a graphical representation of the spatial-positioning data, which is finally displayed on a personal computing device of the owner.