La Madre Foothills is an area in the Northwest of the Las Vegas valley. This area is managed by the Bureau of Land Management (BLM) and is part of the Red Rock Canyon National Conservation Area. The BLM recently completed a study and plan for this area that is documented here: https://eplanning.blm.gov/eplanning-ui/project/2031812/510 . While the plan closes many current trails, it also leaves several open, including some trails for motorized use. I have ridden my bicycles in this area for years.
Here is a link to the map above in the Wilderness Connect mapping system. Part of this area is designated wilderness which means it is closed to all forms of "mechanized travel". However, many areas are not wilderness and are covered in the BLM Alternative B plan described above. Numerous existing 2-track trails have been designated for closure (shown in grey). The 2-track known
as "Burro Road" in TrailFolks actually passes though both BLM land, and between a narrow corridor in the
Others have called this same 2-track "Bad Words". This 2-track connects Little Red Rock to Harris Springs Canyon and eventually Kyle Canyon at the Twilight Zone parking lot. Traveling from Little Red Rock you will encounter 2 challenging hill climbs shown by the blue arrows below.
Below is the West hill which borders on the BLM property on the West side.
After climbing that hill in the background (photo above), there is a narrow wash that is a corridor between La Madre wilderness that is not designated wilderness (image below).
You can also connect between these 2 climbs by taking the trail Trailfolks calls "Washaway": https://www.trailforks.com/trails/washwaywhich can be accessed from the West end of Centennial or Tropical.
OnX calls the route from the West end of Tropical to Little Red Rock "La Madre Mountain Pass":
https://webmap.onxmaps.com/offroad/map/query/36.248741,-115.398308,12.68/overview?id=3ae6d4f0-ec7e-5c1e-874e-6b43431ecd37
Here is the GPX file: https://drive.google.com/file/d/1WC6AP2bAZwo1of2FnU-jgFCSorH8-40Q/view?usp=sharing I rode this on my eMTB.
Here is a GPX going up Kyle Canyon and down the central valley (image above):
https://drive.google.com/file/d/1UCmzd0fpf4sdBMBmkTaIYoPb4UfnggpG/view?usp=sharing 15 miles. I rode this on an eMTB.
Here is a YouTube playlist of videos from this route:
https://www.youtube.com/playlist?list=PLZ4ONVypz2fYbWQQGuH5obVuBiGs9SVVR
From the Kyle Canyon side, heading East there is a wash that leads to the top of the West pass.