On Wed, 12 Aug 2020 at 18:36, Tod Fitch <t...@fitchfamily.org> wrote:
> Not yet mapped, but my prototype case can be seen in the Bing Imagery with > an area that collect water around 33.99268,-116.22239 and flows generally > to the east and north only to dissipate around 33.06076,-116.06077. > There's water there? It looks like the surface of Mars. I can see subtle features but I'd hesitate to call them water from Bing imagery alone. Could be deer trails for all I can tell. > The collection area is no problem nor is the ephemeral waterway until > about 33.03910,-116.099138 where it start bifurcating into smaller and > smaller channels which eventually disappear. > Either I'm looking at the wrong place, or the USGS Topographic Map layer thinks things are somewhat different, at least in the rainy season. It looks like you have a number of sinks and, generally north-east of the sinks, issues (as Ordnance Survey would call them), on intermittent streams (if I'm interpreting USGS symbols correctly). -- Paul
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