Phones often rely on a combination of GPS and cell phone tower signal, and their accuracy is improving each year. I can guarantee you that if I went there with a 2021 model phone and took the tracks, there would be greater error compared to a newer model.

That is how science works. You try to replicate data, and the more data you have, the more accurate your results. In some spots where I had to backtrack and there were minor deviations, I took the average of the two lines.

I don't see no other GPS Traces, so there is no other data to compare it to.

And again, you need boots on the ground. 5 years ago it might have been a 6 foot wide gravel path, but if vegetation starts to grow in you will start to have some weaving. I don't know the specific sections you are talking about.

But aerial images should not be the sole factor for hiking trails. If its a road, or rail trail or paved surface that is easily visible, that I could understand. The trails here don't look like they are maintained, and particularly in the southern part of the park there are areas that I think might have changed slightly.

I am confident with the reliability of my GPS data. I often Avenza with maps that have been professionally made, and in many cases my tracks line up perfectly.

I looked at the history and saw that you added some of those features roughly 6 months ago. Don't worry, the data you originally had helped a lot. I was only improving on it since several trails, trail names, bridges, parking lots, trail kiosk were missing and I've added those.

Another example, the path near Avalon that you modified, satellite view showed it as being in the parking lot. While my GPS track showed it accurate and as being just south of the edge of the parking lot. Please try to collect first-hand field data before making any significant edits to my work.

I have no problem if you want to field check my data by going there and recording a track and comparing it to mine...etc. However major edits without actually visiting the park in person is not really a good idea.

I don't think it is a good idea to rely on satellite view too heavily, since conditions on the ground can change, and data collected in the field should be considered the most reliable. As an example, the condition of the trails here have changed significantly since 2021. My GPS track was from several weeks ago, and what I would consider recent.

I'm only adding greater level of details to the trails that I hike. If there is a point every 300 or so feet it doesn't accurately represent the trail, but if there is a point every 40 or so feet, it will provide a more accurate representation of the trail on the ground.

Again, there are regional variations, and things can vary slightly by geographic area. Let’s leave it as is for now.

I will look into it. There are also regional variations, and things can vary slightly from region to region.

Let's leave it as is for now. I am from the area.

Lets leave it as Park for now and I will look into it more. We are working on figuring out a consistent format.