There's a great link here: https://modernhiker.com/hike/hike-lost-horse-mine-in-joshua-tree-national-park/ . to a description of Lost Horse Mine Trail and I really can't do any better. I did however get some great landscape photos of the Joshua Trees (not one is the same) and the creosote plants and wonderful desert scenery. Divine. The light for landscape photography wasn't amazing-amazing to be honest (we started out at midday) so I converted a lot of the photos (taken in the largest RAW resolution) to Black and White photos and I think I prefer them to the washed out high noon colors.