The road up from the valley to the park is surprisingly full of large piles of rubbish, but it's worth it. The park itself is pristine, and provides a rugged landscape of dry scrub, native plants and a geology that surely tells an interesting story.
It's pretty exposed to inland "Valley" heat, so wear a hat, bring water and maybe go when the highs are in the low 80s at most.
We were the only hikers, but cell service was great (if we were to unexpectedly need civilization).
Only complaints (beside the trash-strewn highway to the park) was that there's a gun range nearby. Not offensive or loud, but without it, there are spots where only the path itself is evidence of humans. We saw a juvenile deer, two hawks (or some kind of kite--too far away to make out features) and sounds of birds and insects, all only about 15 minutes drive from Pacoima. read more