1. Social Distancing on a bus would really cut back on the capacity.

2. The normal buses are not being used this year because the Colorado only turns do not require a bus.

So, you and your friends set up a car pool.
Get up a hour or two early.
Two cars travel in tandum to the Chama parking lot.
Leave one car there.
You and your friends ride in the other to Antonitio.
Ride the train,
The owner of the car in Chama takes everyone in your group that left a car in Antonito. back to Antonito.
Go home?

Or convince your wife or someone to drive your car from Antonito to Chama and met you there..

BN