ctbishop@[EMAIL PROTECTED]
(Charles Bishop) wrote in
news:ctbishop-1005080303360001@[EMAIL PROTECTED]
> In article <48227C05.511CEE2A@[EMAIL PROTECTED]
>, Bill Turlock <"Bill
> Turlock "@[EMAIL PROTECTED]
> wrote:
>
>>Charles Bishop wrote:
>>>
>>> In article <481E5FFE.9B8C9902@[EMAIL PROTECTED]
>, Bill Turlock <"Bill
>>> Turlock "@[EMAIL PROTECTED]
> wrote:
>>>
>>> >"Charles Wm. Dimmick" wrote:
>>> >>
>>> >> Brettster wrote:
>>> >> > My regular walk to the Beverly Hills Public Library seems like
>>> >> > a gradual uphill climb -- nothing on par with San Francisco,
>>> >> > but a very slight incline most or all of the way. As you might
>>> >> > expect, the walk back home is a breeze. According to my
>>> >> > handheld Garmin GPS, it's exactly 1.75 miles each way. But I
>>> >> > wondered exactly how much height I was achieving on my walk, in
>>> >> > addition to the distance. How can I tell? Can a handheld device
>>> >> > measure something like that? It could be several feet or, I
>>> >> > suppose, it could be more. I have utterly no idea. Any
>>> >> > ideas?
>>> >>
>>> >> Look at a topographic map for the area. Too bad it's not
>>> >> Connecticut, or I could look it up for you. I have a complete set
>>> >> of Connecticut topographic maps at scale of 1:24,000 [1 inch =
>>> >> 2000 ft]. Seems to me I remember the the USGS has an on-line site
>>> >> which allows you to look at a topographic map for anywhere in the
>>> >> contiguous US.
>>> >>
>>> >> Charles
>>> >
>>> >Or the Bay Area. I have 15" charts from the ocean to Sacramento &
>>> >Srockton, Santa Rosa to Santa Cruz. Even at $cheap/ea, I got a
>>> >lotta bux in 'em!
>>>
>>> I once bought a 1' = 1' map, but had to give it away. It was too
>>> much trouble to unfold.
>>
>>
>>I know you know this, but that's a 15 minute chart.
>
> Admitting presence of whoosh, but I didn't know that, nor what it
> means.
>
The " can mean a quote mark, or indicate minutes of arc. A 15 minute map
includes one quarter of a degree of latitude and longitude.
Sean
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