The Location of the Gastrocnemius
The Gastrocnemius also known more commonly as the "Calves" are found just below the knee on the posterior side of the tibia and fibula. This muscle ranges from just below the knee all the way down to the heel.
There are two parts to the Gastrocnemius. The lateral head and the medial head.
The Gastrocnemius lies over top of the Soleus which together form the calf muscle.