There is a brilliant version of Morgans map of 1682 at the Layers of London site; you need to click to use the overlay, then use the sliders on the Overlay tools to get varying images. I also hide all pins.
The Morgan map depicts the city of London 16 years after the Great Fire. This map complements the slightly earlier Ogilby and Morgan map by adding a survey of Westminster and a section of Southwark and showing the changes made to the city from 1676 to 1682. The Morgan map also includes detailed depictions of churches, markets, and great houses located throughout the area and a long panorama of London and Westminster. An original map survives in the British Library.
There is duplication of the numbering system amongst the four sections of the map.
There appear to be four sections of the key, which relate to different sections of the map.
The first is Westminster, and includes about 419 separate key entries, and many of thses are Inns (or Innes). Beginning in Portugal street (later named Piccadilly) and ending at 419 Bishops Head court in Grays Inn lane.
Here is part 2 of Westminster from Swan Inne(210) to Bishops head Court (419)
The Key :
210 Swan Inne - Tuthill street - the Swan with Two Necks in 1746 Rocques - Swan with Two Necks, Tothill street, St Margaret, Westminster
211 Frying pan alley - Tuthill street
212 Fleece yard - Tuthill street
Cock Inne - Cock, 4 Tothill Street, Westminster SW1
213 Three Tun alley
214 Corey house - Tuthill street
215 Paviors alley - Tuthill street
216 Baileys yard - Broadway
217 Pipe ally - Broadway
218 White hart yard - Broadway
219 White hart lane - Broadway
220 New Tothill street
221 Green Dragon Court
222 Five foot alley - Petty France
223 Kidders yard - Petty France
224 Codpiece Court - Petty France
225 Ship yard
226 Scotfords alley - Petty France
227 Hardings alley
228 Gilberts alley
229 Red Lion Inne - Red Lion, Petty France, St Margaret, Westminster
230 Mustard alley - Cabbage lane
231 Audley Court - Cabbage lane
232 Powder beef Court - Cabbage lane
233 Kings Head Inne - St James street - Kings Head, 1 James Street, St Margaret, Westminster
234 Quart pot alley
235 Pump alley
236 Alms house yard
237 Maiden Court
238 Dormers hill - Stretton Ground
239 Prince Roberts yard - Orchard street & Dacres street
240 Sheenes Rents - Great Almonry
241 New way - Great Almonry
242 Choristers Rents - Great Almonry
243 Still alley
244 Kings alms houses
244 Little Almonry
246 Gatehouse
247 Chandlers alley
248 Horn Court - Peter street
249 Perkins Rents - Pye street & Peter street
250 Tompkins yard
251 Little St Anns lane - Pye street & Peter street
252 Windmill Inne - Peter street - Windmill, Peter Street, St John, Westminster
253 Windings alley - Great St Annes lane
254 Phoenix yard - Peter street
255 Laundry yard
256 Bennets yard
257 Olives Court - Bowling alley
258 Morrice Court - Bowling alley
259 Back alley - Bowling alley
260 Little Deanes yard
261 Kings school
262 Westminster
St Peters Cathedral
St Margarets Cathedral
New Palace Yard
263 Fish yard
264 Westminster Hall
265 Exchequer
266 House of Commons
267 House of Lords
Old Palace Yard
268 Maskalls alley - Mill Bank
269 Earl of Lindseys - Mill Bank
270 George alley
271 Thatch alley - The Strand, north side
272 Heathcot Court
273 Bailys alley - The Strand, north side
274 Queens head Court - The Strand, north side
275 Bull Inne - The Strand Bull Inn, Strand & Maiden lane WC2
276 Shearmans Entry
277 Olivers alley - The Strand, north side, opposite Salisbury house
278 Globe alley
279 Ivy bridg lane - The Strand, south side
280 Middle Exchange
281 Marigold alley - The Strand, north side, almost opposite the Savoy
282 Eagle & child Inne - The Strand, north side, opposite Somerset House - Eagle and Child, 342 Strand, St Mary le Strand WC2
283 Helmet Court - The Strand, north side
284 Eagle Court - The Strand, north side
285 Swan yard
286 Dunhams yard - The Strand, north side
287 George Inne - Drury lane - George Inn, 87 Drury lane, St Mary le Strand WC2
288 Bell Inne - The Strand, north side and Wych street, and marked on 1746 Rocques map - Bell, 314 Strand, St Clement Danes WC2
289 Sallits alley - The Strand, north side and Wych street
290 Feathers Court
291 Drury House
292 Clare House
293 Pump Court - White Hart yard
294 Red Lion Court - White Hart yard
295 Nelsons Court
296 Vinegar yard - Drury lane
297 Little Bridges street
298 Deanes Court
299 Play house yard
300 Kings Playhouse
301 White horse yard - Drury lane north side
302 Red hart yard - Drury lane north side
303 Kings head Court - Drury lane north side
304 Drum alley - Drury lane north side
305 Jacksons alley - becomes Russell place, Little Russell street
306 Crown Inne - 12 Little Russell street - Crown Inn, 12 Little Russell street, St Martins in Fields WC2B
307 Crown Court - 10 Little Russell street
308 Red Bull Inne - Drury lane south side - Red Bull, 58 Drury lane St Martins in Fields WC2B
309 Cock pitt alley - Drury lane north side
310 Red Lion Inne - Drury lane south side - Red Lion, 43 Drury lane, St Martins in Fields WC2B
311 Cradle alley - Drury lane south side
312 Black horse Inne - Black Horse, 22 Bow street, Covent Garden WC2
313 Naggs head Inne - James street - Nags Head, 10 James street, Covent Garden WC2
314 White hart Inne - Hart street - White Hart, Hart street, Covent Garden WC2
315 Knuckles alley - Long Acre
316 Seven Starr alley
317 Feathers alley - Long Acre
318 Hills alley - Long Acre
319 Princes Court
320 Phoenix alley
321 Dirty Lane - Long Acre
322 Dog yard
323 Sugar loaf alley - Great Queen street
324 Bull head Court - Great Queen street
325 Whitcombs alley - Great Queen street
326 Dukes head Court
327 Starr Court
328 Ralphs Court
329 Kings head yard - Duke street
330 Three Crane Court
331 Porters alley - Stanhope street
332 Blew boar Court - Stanhope street
333 Thunderbolt alley
334 Blackamores head Inne - Stanhope street -
335 Playhouse yard - Bear yard
336 Louches buildings - Portsmouth Corner
337 Pierpoint Corner - Clare Market
338 Cross keys Inne -
339 Dunne alley - High Holborn
340 Lion street - High Holborn
341 Harrow alley - High Holborn
342 Lion Court
343 Coach & Horses yard
344 Fountain alley - High Holborn
345 Three Kings Inne - King street and The Kings Way, later Theobalds Row -
346 Kings Head Inne - Kings Head, High Holborn & Little Princes street, St Giles WC2
347 Little Turnstile alley - High Holborn
348 Gregories alley
349 Partridges alley - High Holborn
350 Philips yard
351 Vine Court
352 Castle Inne - High Holborn, south -
353 Rose alley
354 Blew boar Inne - High Holborn, north Old Blue Boar Inn, 76 High Holborn, Holborn WC1
355 Red lion Inne - High Holborn, north - Red Lion (Old), 72 High Holborn, Holborn WC1
356 Three Cups Inne - High Holborn, north - Three Cups, 82 High Holborn, Holborn WC1
357 Leadenporch Court - High Holborn
358 Hand yard - High Holborn
359 Unicorne Inne - High Holborn, south - Unicorn Inn, 274 High Holborn WC1
360 Sword & buckler Inne - High Holborn, south - Sword and Buckler , 279 High Holborn WC1
361 Turnstile alley
362 John Baptist Inne - High Holborn, south - John Baptist Inn, 285 High Holborn WC1
363 Star Inne - High Holborn, south - Star Inn, 288 High Holborn WC1
364 Fulwoods Rents - High Holborn, south
365 Turkes Head alley
366 Fleece alley
367 George yard
368 Bakers alley
369 Southampton Court
370 Northumberland Court
371 Ducks Court - Cursitors alley & Castle street
372 White alley - Chancery lane
373 Simonds Inne - Chancery lane
374 Cursitors office - Chancery lane
375 Feathers alley - Lincolns Inn & Bell Yard
376 Six Clerks office
377 Jackanapes Lane - Bell Yard
378 Chancery Office - Bell Yard
379 Bell Inne - Bell Inn, Bell yard, Fleet street, St Clement Danes WC2
380 Bailys yard - Bell Yard
381 Hemlocks yard - Little Lincolns Inn fields
382 Little Sheers lane
383 Crown Court
384 Plough alley
385 Plough Inne - Lincolns Inn fields - Plough, 23 Carey Street, St Clement Danes WC2
Little Lincolns Inn fields
386 Grange Inne - Clements Inn / Lincolns Inn fields - Grange Inn, 31 Carey Street, St Clement Danes WC2
387 Boswell Court
388 St John Baptists Court
389 Lamb Inne - Lamb, Wych street, St Clement Danes WC2
390 Hand & Holly bush - Wych street - Hand & Holly bush, Wych street, St Clement Danes WC2
391 White lion alley
Angel Inne - Wych street - Angel Inn, Wych street, St Clements
New Inne - Wych street
392 Wich alley
393 Lions Inne - Wych street - An Inn of Chancery eventually replaced by a Globe Theatre.
394 Pissing alley
395 Halbert Court
396 Naked boy Court
397 Talbot Inne - Strand, south side, eastern end - Talbot Inn, Strand, St Clement Danes WC2
398 Green dragon alley
399 Angell Court
400 Ax yard
401 Hand alley
402 White horse alley
403 Maidenhead alley
404 Crown court
405 Peacock alley
406 Greyhound Court
407 Essex Court
408 Lock alley
409 White hart yard
410 Starr Court
411 Blue anchor Court
412 Swan Court
413 Ship yard
414 Clare Court
415 Cross keys alley
416 White horse Court
417 Slaughter Court
418 Three arrow Inne -
419 Bishops head Court