Name two geographic obstacles and one political obstacle that stood in the way of the construction of the panama canal. how did engineers and politicians overcome these obstacles?

Name two geographic obstacles and one political obstacle that stood in the way of the construction of the Panama Canal. 
The two geographic obstacles that stood in the way of the construction of the Panama Canal was that Panama was very mountainous, and there were a lot of mud slides. One political obstacle was that Panama was part of Colombia. The united states had to negotiate with Colombia before Panama became independent. Engineers had to build a dam, design and build locks, and remove huge amounts of earth and rock in order to overcome the geographical obstacles.