Ashcroft Pit Coal Mine · AditNow Community

Mine exploration, photographs and mining history for mine explorers, industrial archaeologists, researchers and historians

a b c d e f g h i j k l m n o p q r s t u v w x y z

skiprat
50.2% (Neutral)
Newbie Topic Starter

12 years ago

Could Ashcroft Pit Coal Mine be the same as West Melton Colliery shown on the OS 1 in 10560 map of 1845, and as old shaft on the 1892 1 in 2500 OS map at SE 42092 00795.

No sign of a shaft on either map in the position located by the Aditnow pushpin.

Skiprat

Wanna join the discussion?! Login to your AditNow Community forum account or Register a new forum account

christwigg
50.2% (Neutral)
Newbie

12 years ago

I would imagine the location came from a six figure grid reference hence the wrong side of the road. I don't know the location personally, but the newly released NMRS database calls it 'West Melton' too.

Name West Melton
From 1854
To_Month
To_Year 1886
Mineral Coal
Easting 442122
Northing 400791
Gridlet SE
East 4212
North 0079
Mine_Owner 1854-1855 J. Law 1856-1857 John Law 1868 Laws 1869-1877 W.B. Law 1878-1881 W. Law 1882-1886 Ja

Anyone want to defend the honour of Ashcroft Pit before I update it ?

LeeW
50.2% (Neutral)
Newbie

12 years ago

Ashcroft Pit is the same as West Melton Colliery shown on the 1850s 6in plan.

The colliery has been known as:
West Melton
Ashcroft New
Cottage of Content

Although the abandonment date for Cottage of Content appears to be 1887 and not 1886

Numerous names for the same pit is not uncommon and can often involve a pit being abandoned more than once etc

There were 2 shafts centred around approx 442075, 400785.

The is a default error on the google maps view (the co-ords are converted slightly wrong to a lat-long), the streetview window arrow is almost in the right place.
There is unlikely to be any surface evidence of the pit or the shafts.

I went in a mine once.... it was dark and scary..... full of weirdos

When do I get my soapbox, I need to rant on about some b***cks

simonrl
51% (Neutral)
Administration

12 years ago

"LeeW" wrote:
The is a default error on the google maps view (the co-ords are converted slightly wrong to a lat-long), the streetview window arrow is almost in the right place.
There is unlikely to be any surface evidence of the pit or the shafts.

Easily corrected by dragging the Google map around on the mine edit page - the actual pushpin these days comes from the lat/long rather than the NGR.

For mines added to the database pre-this modification, the lat/long was calculated from the NGR but obviously not as accurate since a 6-figure NGR is within a 100m grid.

:flowers:

my orders are to sit here and watch the world go by

LeeW
50.2% (Neutral)
Newbie

12 years ago

"SimonRL" wrote:

"LeeW" wrote:
The is a default error on the google maps view (the co-ords are converted slightly wrong to a lat-long), the streetview window arrow is almost in the right place.
There is unlikely to be any surface evidence of the pit or the shafts.

Easily corrected by dragging the Google map around on the mine edit page - the actual pushpin these days comes from the lat/long rather than the NGR.

For mines added to the database pre-this modification, the lat/long was calculated from the NGR but obviously not as accurate since a 6-figure NGR is within a 100m grid.

:flowers:

Probably explains why some entries on the database plot ok on Google Maps whilst others don't.
The site was added in 2011.
I also believe there was (still is?) two conversations from NGR to lat-long.

All my mine entry locations are put in by using the 6 fig grid ref

I went in a mine once.... it was dark and scary..... full of weirdos

When do I get my soapbox, I need to rant on about some b***cks

christwigg
50.2% (Neutral)
Newbie

12 years ago

Lets just pop "West Melton" on as an alternative name then, and i've popped it over the other side of the road (under a housing estate)

simonrl
51% (Neutral)
Administration

12 years ago

Yup, the switch to lat/long from NGR for map plotting was last July, so way after that mine was added.

I did hundreds of test translations from NGR to lat/long before making the switch and the conversion was accurate; often its the 6 figure NGR that introduced some margin for error - it equates to 100m squares.

When you add/edit a mine there is some AJAX code that on-the-fly converts NGR to lat/long and scrolls the map around.

It is quite feasible to stick an NGR in and then fine tune by zooming in and scrolling on the map.

my orders are to sit here and watch the world go by

NewStuff
50.2% (Neutral)
Newbie

12 years ago

While we're on the subject, is there an easy website/plugin that converts NGR-->Lat/Long? Going to streetview for every single reference I come across is an immense arse

Searching for the ever elusive Underground Titty Bar.

DDDWH CC

simonrl
51% (Neutral)
Administration

12 years ago

I honestly cannot remember what I used for the bulk conversion, but this is a good starting point.

http://www.nearby.org.uk/coord-entry.html

Once you have lat/long you can start doing things like distance uisng thr greta circle haversine equation.

my orders are to sit here and watch the world go by

christwigg
50.2% (Neutral)
Newbie

12 years ago

#10

I used this one the other day to quickly convert a spreadsheet full of grid references by saving them as a CSV then dropping them into here.

http://ww2.scenic-tours.co.uk/serve.php?t=WoNlbJvoVlhuJL5405objaa8jVO8atNuwZV

sinker
50.2% (Neutral)
Newbie

12 years ago

#11

"NewStuff" wrote:
....is there an easy website/plugin that converts NGR-->Lat/Long?

Warning...be aware which Grid you are on (OSGB36 for example) and which version of "The Earth" you are on (Transverse Mercator Projection etc). And beware if you want results that tie in with things like sat/nav....
Believe it or not, the Yanks think the Earth is a different shape to us :lol:

Yma O Hyd....

skiprat
50.2% (Neutral)
Newbie Topic Starter

12 years ago

#12

For NGR to Lat-Long conversions and vice versa I use an Excel plugin by Phil Brady
http://www.haroldstreet.org.uk/osgb/excel-conversion-code/

Skiprat