ANF boundary question
Posted: Mon Apr 06, 2020 1:24 pm
I noticed that in the recent map distributed with the trail closures it has a National Forest Boundary marked in green:
But on the 'FSTopo' map here https://data.fs.usda.gov/geodata/raster ... states.php, if you go to the region around the Cobb Estate for example it shows the same green line above but in Black, and the shaded green area above as a second boundary:
I'm trying to wrap my head around how there could be two boundaries. I was looking on CalTopo https://caltopo.com/map.html#ll=34.2022 ... =15&b=1900 on their 1895-1915 historical layer and it appears that maybe the black line is the historical boundary? But why would they be using an outdated historical boundary in a trail closure document published in 2020? Does anyone else have an idea what the difference is between the green and black lines are and if the black line is even relevant as a boundary?
But on the 'FSTopo' map here https://data.fs.usda.gov/geodata/raster ... states.php, if you go to the region around the Cobb Estate for example it shows the same green line above but in Black, and the shaded green area above as a second boundary:
I'm trying to wrap my head around how there could be two boundaries. I was looking on CalTopo https://caltopo.com/map.html#ll=34.2022 ... =15&b=1900 on their 1895-1915 historical layer and it appears that maybe the black line is the historical boundary? But why would they be using an outdated historical boundary in a trail closure document published in 2020? Does anyone else have an idea what the difference is between the green and black lines are and if the black line is even relevant as a boundary?