1:100,000 topographical maps

Submitted: Wednesday, Mar 16, 2005 at 15:08
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Does anyone know if any 1:100,000 Australian topo maps are available on CD, and if so, where a good place to purchase them would be.

Thanks in advance
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Reply By: pjchris - Wednesday, Mar 16, 2005 at 16:12

Wednesday, Mar 16, 2005 at 16:12
Check here for 1:100000 NatMap availability.

Maptrax will sell you just abouyt any combination of maps on a cd as long as you are prepared to pay for it. And some of the prices seem quite steep.

The 1:250000 maps are available as sets that are quite reasonably priced but definately don't show as much detail as the 1:100000 series, although they are much newer. The 1:250k are all 2003/3 maps with an updated 2005 set to be released in April while many if not most of the 1:100k maps are over 20 YEARS old some being over 35 years old (Last updated in 1968!).

Some States release their own maps and these may be newer.

Peter
AnswerID: 102660

Follow Up By: Elmo - Wednesday, Mar 16, 2005 at 17:50

Wednesday, Mar 16, 2005 at 17:50
You were definitely right about the price and date of survey of the maps. I guess Ill have to narrow down the places I require a 1:1000000 map for. $100 minimum order on cd seems a bit expensive when compatred to 250,000 series.

thanks
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Reply By: ExplorOz Team - David - Wednesday, Mar 16, 2005 at 16:13

Wednesday, Mar 16, 2005 at 16:13
The quick answer is there are no national 100K scale maps available. Some states have various products in 25K & 100K however they are usually broken down into GIS product layers and not pure raster map images. Geoscience Australia have a 100K database however it is almost useless (according to GA themselves) and there is a project running at the moment to update about 10-20 sheets of the several thousand sheets of the product. So in a nutshell there is no data available to produce an accurate 100K product for the country. I wish there was as I would purchase a license for it and using it in our mapping engine.

If someone else knows something else then I would expect that we would all be happy to find out.
David (DM) & Michelle (MM)
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Reply By: Charlie - Wednesday, Mar 16, 2005 at 16:58

Wednesday, Mar 16, 2005 at 16:58
Some reseller do sell CDs of scanned paper maps but their outdated and expensive, a thousand bucks last I checked. The main problem is the lack of standardization, a lot of artistic flair is shown on some of the maps .
Regards Charlie
AnswerID: 102670

Follow Up By: Elmo - Wednesday, Mar 16, 2005 at 17:43

Wednesday, Mar 16, 2005 at 17:43
Hey guys

Thanks for the feedback, I was thinking this may be the case, however was hopeful. Thanks for all the feedback and responses.

regards

Elmo
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Reply By: Davoe - Wednesday, Mar 16, 2005 at 18:49

Wednesday, Mar 16, 2005 at 18:49
forget the 100k maps - they were last done over 20 years ago, the 250k maps are better as they are generally around 5 years old. same detail just smaller scale - neither are particulary good as they are too old and not checked thouroughly prior to publication but the 250k are alot better
AnswerID: 102685

Follow Up By: The Explorer - Thursday, Mar 17, 2005 at 11:08

Thursday, Mar 17, 2005 at 11:08
Davoe
"they were last done over 20 years ago" - not true - From Geoscience Australia website - Currency: Ranges from 1961 to 2000, Forward Program: Selected maps under revision....so while some maps are over 40years old, some are probably only a few years old, if that.

"the 250k maps are better as they are generally around 5 years old" - close enough - Currency: Ranges from 1967 to 2002. 95% of maps have a reliability date of 1994 or later. Also depends what you mean by "better". Old maps are sometimes good for certian applications. eg finding old tracks/bores no longer mapped.

"same detail just smaller scale" - not true - for example 250K maps have 50m contours, 100k maps have 20m contours. Areas of more subtle topography will not be evident on 250K maps. Depends on your application if this is of any use....so depsite all that I have pointed out 250K maps may be the best option for some.

Cheers
Greg
I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874

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Follow Up By: Davoe - Thursday, Mar 17, 2005 at 13:04

Thursday, Mar 17, 2005 at 13:04
Explorer just to clarify why i made that coment I probably made a toosweeping judgement. My experience with the maps are from working for the Geological survey in the goldfields in this region most 250k maps are around 2000 and most 100k are around 1983. There are no useable tracks on the 100k sheets that are not on the 250k and most tracks 98% on the 100k are on both but alot of tracks are a straight copy from one to another and are no longer useable and alot are totally gone (it only takes a fire and the track is totally gone for good). as it was our job to totally trverse the 100k sheets you get a good idea of what tracks exist still and which ones dont
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Follow Up By: Davoe - Thursday, Mar 17, 2005 at 13:07

Thursday, Mar 17, 2005 at 13:07
oh and dont get the topo maps mixed up with geoscience maps they are 2 different things 100k geol survey maps are being undertaken currently as the 250k geol mapsw were done around late 60s - geol survey maps can have more updated tracks/deleted tracks if done by the geo but have no topography
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Follow Up By: The Explorer - Thursday, Mar 17, 2005 at 16:01

Thursday, Mar 17, 2005 at 16:01
Davoe - I understand your interpretation - for example I have the Peak Charles 100K map and it is simply a blown up section of the 250K map (apart from the extra contour detail). In these remoter areas there is no other tracks present so they can of course not be shown. A different story in the south west where extra tracks appear on the 100k maps (though a tad out of date on some) for example.

"oh and dont get the topo maps mixed up with geoscience maps they are 2 different things" - yes I know - I have both 250k topo and Geology sets on CD and a few of the 100k Geology and topo ones as well (paper)...not to mention some 50k geology, 50K topo (SWWA series of which I sell on CD..Kimberley coming soon), 25k topo and a load of other scales...and one or two air photos.......

Greg
Exploration Geologist/Environmental Scientist
I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874

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Reply By: The Explorer - Wednesday, Mar 16, 2005 at 19:00

Wednesday, Mar 16, 2005 at 19:00
What area are you looking for?
Cheers
Greg
I sent one final shout after him to stick to the track, to which he replied “All right,” That was the last ever seen of Gibson - E Giles 23 April 1874

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AnswerID: 102686

Reply By: Member - Geoff & Karen - Wednesday, Mar 16, 2005 at 22:36

Wednesday, Mar 16, 2005 at 22:36
Dont know if this helps but ABC online has a set of 7 cd roms for about $165 (for memory) for each CD. So I suppose if you only wanted a couple of states it wouldnt be to bad.
If you give me a hoy, I could propbably find the website again.
Karen
AnswerID: 102729

Follow Up By: Elmo - Wednesday, Mar 16, 2005 at 23:11

Wednesday, Mar 16, 2005 at 23:11
Thanks Davoe, The Explorer and Geoff/Karen for the posting/s. Only thinking about the 100,000 scale for a bit of hunting in the Cape York/ Gulf Area. Already use Oziexplorer with the 250,000 scale maps. Will continue to stick with this series of maps as like everybody has suggested, they are newer and thus a lot more accurate.

Thanks All
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Reply By: equinox-Kings Canyon - Thursday, Mar 17, 2005 at 00:19

Thursday, Mar 17, 2005 at 00:19
Elmo,

Dont know about availability on CD, but when I retraced Carnegie's expedition 2 years ago I purchased every 1:100000 paper map covering the route. Costing about $12 a sheet( 6 sheets per 1:250000 map) it was expensive but they did give more detail than the 1:250000 maps. The manmade features may be out of date in some cases, but the topography is definetely more detailed. I had to especially order them from the local map shop and took some weeks to procure.

These maps are mainly from the more remote areas of Australia - The people from the map shop call them "line drawings"!!. The less remote areas of Australia on 1:100000 are easily obtained on paper.

Regards

Equinox
AnswerID: 102740

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