Conversation so far:
What are trail rides?
Since 1952, traditional trail rides have been a part of the Houston Livestock Show and Rodeo.
Are trail rides open to the public?
As of 2017, there were 13 official trail rides, totaling over 3,000 riders.
Do people ride on horses?
The trail rides range in size from a dozen to over one thousand people who ride on horseback or in horse-drawn wagons from various areas of the state to Houston.
Is there a charge to participate?
Participants can bring their own provisions, or, in some cases, purchase meals at a chuck wagon that is also following the trail.
Can you rent a horse or wagon?
The trail rides range in size from a dozen to over one thousand people who ride on horseback or in horse-drawn wagons from various areas of the state to Houston.
How many days is the trail ride?
The trail rides last from a few days to three weeks, depending on the distance they cover.

Question: Is there any other interesting information I should know?
Self-contained rewrite: Is there any other interesting information I should know about the trail rides, other than the price and length?