When the chariot first pulls up to the rock near the volcano, there are no tread tracks behind it. When Professor Robinson meets Will there, two clear tracks are visible behind the vehicle even though it hasn't moved since being parked there.
Professor Robinson is shown piloting the space pod in a search for Major West and Doctor Smith, however it has been previously shown that the space pod launches from a bay beneath the main deck of the saucer, and the pod's launch bay is inaccessible while the saucer is grounded.
At about 47:40 an electrical transmission line tower can be seen atop the mountain (top right of screen).