This review is specific to the Chisos Basin Group Campsites. I actually prefer the Chisos Basin Group Campsites over the regular Chisos Basin Campsites. The group sites require a minimum of 9 people and a maximum of 20 people. The group campsites are located on a separate loop with only 7 campsites. The regular campsites are located in a cluster with about 60 campsites side by side - there is little privacy. I've found the group campsites have a similar view of the Chisos Mountains and the valley. There is one restroom for the group sites which has sinks and toilets, but no showers. There are no showers in the Chisos Basin except at the Lodge. 

Three of the group campsites have sun shades (sites P, Q and R) and the remainder are exposed. If you can reserve a campsite with a sun shade it will be worth it. The sun and the wind can be very intense throughout the year. It is highly recommended that you secure your tent with extra guy lines and tent spikes. 

The Window Trail trailhead starts from one corner of the group campsites. It's a short and moderate difficulty trail with a scenic view of the valley and sunset. If you hike the Window Trail to see the sunset, be sure to bring a flashlight because it can be difficult to find your way back once the sun goes down. Other highly recommended trails include the Emory Peak Trail, Lost Mine Trail and the Santa Elena Trail.