Sounds good and hah, no, trying never to edit on vibes. I've never used Achavi but that sounds neat. I don't recall the particulars of the northwest part of this trail, but if your track is better, then am happy to have it be put back.

Hi, nice to meet someone who also improves the trail maps around LA. I often use the USGS 3D Elevation Program layer, which often shows paths well, even when hidden by trees. This is in conjunction with Bing and Mapbox layers, and I think all of these qualify as aerial imagery. So no, not a mistake, and I've also hiked most of these trails as well. Let me know if that helps; my goal is to improve these maps as best as possible but if I err somewhere am happy to be corrected too.

Added on the next changeset, thanks

Stone Canyon Reservoir & Watershed, an LADWP property, has unusual boundaries in the form of many small parcels separated by paper streets, and I added them in parts here.

I did, thanks

Hi, I can only speak to the area just by Trail Canyon Falls, but yes, I would say they are viable and commonly-used / informal trails to get to the waterfall on the north side. Lots of people (including us, when were there) go northwest on the main trail, eventually find one (of many) crossing points over the river, then loop back to the southeast, where you can get closest to the waterfall. Also it's nice to meet you. I think we've worked on a lot of the same spaces in the greater LA area.