Park here, off of State Route 160, for easy access to the network of mixed use (mountain biking, trail running, hiking) trails in the southern sector of Red Rock Canyon.
The Late Night Trailhead is also known locally as the Cottonwood Trail area. There's always plenty of parking, and a clean toilet. From the TH a network of trails fans out both north and south to all corners of the local topography. There's a trial for all levels here, from a 20 mile trek with plenty of climbing through the neighboring mountain range, to short flat-ish loops in the high desert. Because of the variety of trails, this is generally the first address local mountain bikers direct a newcomer to the valley. Like the name, this is the perfect access point for cool outdoor night-time adventures during Vegas' long hot summers.
###
Here's a link to the official trail map from the BLM (copy-paste into your browser):
https://eplanning.blm.gov/epl-front-office/projects/nepa/9752/17356/17556/CottonwoodTrail.pdf