On Mon, 3 Dec 2007 19:47:32 -0800 (PST), datakoll
wrote:


Carl,

not to leave the topic but where is the Arkansas at 4,900' ? Decimal
Degrees?
During your cyber travels, have you stumbled over a comprehensive
American rivers map or program?

g. daniels

Dear Gene,

The Arkansas River is at 4,900 about half-way down the face of the dam
at the Pueblo Reservoir:


http://www.crh.noaa.gov/ahps2/river....i ver+Page%21

My daily ride goes west up the river to the dam, up to the top of the
south side of the dam, about 200 feet more up the ridge west of town,
and then back down along the south river bank again and up onto the
bluffs:

http://i19.tinypic.com/4kynamo.jpg

I'm sitting at the 4750 foot contour line on top of the south bluffs
here, where the line goes rightward into the gray residential zone:


http://terraserver.microsoft.com/ima...28&Y=10589&W=3

My daily ride drops about 50 feet down to the river, shown as 4697 at
the upper left, then climbs to about 5100 feet, so 4900 is about
average.

Water flow and reservoir height readings may matter more in arid
south-east Colorado than in Florida:

http://i4.tinypic.com/7yrl0fa.jpg

The daily report this morning shows the Pueblo Reservoir at 4858.10
feet, John Martin Reservoir downstream at 3805.13. The precision seems
absurd until you realize how much water a hundredth of an inch rise
means to dry-land farmers from here to the Mississipi when the
reservoirs cover dozens of square miles. Colorado and Kansas lawyers
spend their lives squabbling over water rights.

As for detailed elevations of rivers, I don't know of any specific
maps, but the high-resolution topo contour lines on the maps at
http://terraserver.microsoft.com will get you reasonably good
information.

Cheers,

Carl Fogel