The Roman Map of Britain Lutudarum Carsington, Derbyshire

Lutudaron var. Lutudaton (R&C 88) next
METALLI LVTVDARES (EE ix 1266)

    If Lutudaron is based on a river name, the Lathkil Lathkell 1577 might be a candidate. It arises above Monyash (sk1466) and flows to the Wye. There is a river Daron in Caernarfonshire that joins the sea at Aberdaron (commonly believed to be based on *daru- 'oak').

    Lutudarum was a lead-mining operation. Celtic *loudja (O.Ir. lúaide) 'lead', likely comes from PIE *pleud- 'melt, flow'. McBain's: Middle Irish luaidhe: *loudiâ; English lead, Anglo-Saxon léad (*lauda-), German loth.

Recently published is 
    Andrew Breeze:  The name of Lutudarum, Derbyshire  BRITANNIA 33 2002 A JOURNAL OF ROMANO-BRITISH AND KINDRED STUDIES p. 266: [synopsis] British-Latin Lutudarum, known from the Ravenna Cosmography and pigs of lead, is usually taken as Carsington, Derbyshire. But Rivet and Smith’s belief that it represents a hydronym perhaps meaning ‘muddy one’ is dubious. Welsh lludw ‘ashes, cinders’ and Brittonic *daru- ‘oak(-wood)’ instead suggest an interpretation ‘ashy oak-wood; oak trees with slag-heaps’, which would be appropriate for a Roman industrial site.
    I prefer the connection to *loudja 'lead'.

    If based on *loudja 'lead', then is it Lut-udaron 'lead-water', rather than the presumed Lutu-d-aron of PNRB or Lutu-daron of Breeze? Was it the old name for Scow Brook, now lost under the Carsington Water reservoir? (related to the river-name Ottery?)

Carsington (SK2552)
BROUGH FIELD, SHININGFORD FARM, (CARSINGTON SITE A) SETTLEMENT, Roman; LEAD WORKING SITE, Roman SK 25 52 EHNMR-643179.
LUTUDARIUM CARSINGTON; DERBYSHIRE DALES; DERBYSHIRE Roman BUILDING, IRON FURNACE, LEAD FURNACE, SETTLEMENT SK 250 524 NMR_NATINV-607017

Esmonde Cleary, A.S. 'Carsington' Britannia xxv (1994) 270

NMR Number: LINEAR 685 notes a possible Roman road running from "a Roman settlement near Ash Plantation (SK 2492 5165) [in the middle of the Carsington reservoir] to Bullhill (SK 2700 4800)". [Bullhill  is at SK 271 491.]