Originally Posted by davidmurphy02
We love Big Bend. Lots of wonderful hiking there, and a variety of lengths and difficulty levels so something for everyone. It's a large park, a fair amount of driving around to explore and see it all.
There are two other park campgrounds - Rio Grande Village and Cottonwood, at opposite ends of the park, also reserveable with some first-come sites as well. There is a small commercial RV park at Rio Grande with hookups but it is little more than a parking lot.
Dave is spot on (with one small exception). Many people who visit Big Bend tend to come back year after year. It is so big - how big you ask - that you can't see but a fraction in a week. Oh, yes, roughly as big as the state of Rhode Island. Note that currently there are NO first-come, first-served sites in the entire park at this time.
To add some emphasis to what Dave said: Avoid the Park in March if at all possible. The weather is usually perfect, the schools are on break, and everyone is heading for Big Bend. Expect to find no parking at trailheads and long lines in the usual places. "March Madness" is the term that the rangers use.
The campgrounds are a mixed lot. Everything from total isolation in the back country (only the very limited selection that Dave mentioned are trailer-suitable) to the hustle and bustle of the Chisos Basin with its most popular trailheads and good cell coverage and tiny sites. Trailer dumps available at Rio Grande Village and Chisos Basin. Moderate shade in Cottonwood and parts of Rio Grande Village (known locally as RGV) so a portable solar panel is very helpful in the winter months.
Drinking water is a mixed bag also. The best water in the Park is in the Chisos Basin complex - spring fed, moderate mineral content. The worst, RGV - barely suitable for flushing toilets. Cottonwood also has non-drinkable water but it also has a station that produces reverse osmosis drinking water - if working.
My suggestion: Read everything you can about the Park - there have been many books published. Then check the Park website often to keep up with the latest news (For example, the Lodge restaurant is closed until further notice [guessing Covid??] and paving in April will close some campgrounds.) As your trip approaches watch the weather closely. The Park is a land of extremes, which includes weather events. They can loose power for days, campers can be trapped in the Chisos Basin for days due to ice on that narrow, steep mountain access road. Be prepared, be self-sufficient and have a flexible schedule.