Harvey "Superwalker" :A map series are made specifically with mountain walkers in mind.
After years enthusiastically using OS (Ordnance Survey) maps for hill walking on first sight these Harvey 1:25000 maps looks rather stark and simple. Fell areas are plain white. Pasture, arable and woodland are bold blocks of yellows and greens. Less contours compared to OS 1:25000 Explorer (15m rather than 10m intervals).
However, less is more.
The map info is easy to read against the bright white background. OS Explorer maps less so because of the dull yellow background used to denote open access areas. The fonts and other markings are bigger and bolder than OS, making them easier to read (particularly in in bad light) (or for those getting on in years)). Contours are in brown, but change to grey in predominately rocky areas. Symbols for crag, scree, boulder field etc. are simpler and clearer compared to OS. This means contours are not obscured under a smothering of rock-type markings, as they tend to be in heavily rocky areas on OS maps. The rocky Scafell range is a good example. Marshy ground is also more clearly delimitated.
The map is waterproof, and comes in a protective plastic sleeve. It is much lighter and thinner than the OS laminated equivalent (and thinner than the ordinary paper one). Unlike the struggle to get out or back into pockets bulky OS Explorer maps, these easily slide in out your pocket (especially when in their sleeves).
Tough - I've used (or rather abused) these Lake District maps of the Super Walker series on a dozen Lakes trips now; rained on, rammed in and out of pockets, sat on, bent the folds against the seams, and still no tears.
All the info necessary to navigation is on it - tracks, rights of way, scree, boulder field, crag, rocks, walls/fence boundaries, streams etc - just like on a OS map .
"Wainwright" fells are marked in red, useful for Wainwright baggers or as a guide to interesting hill tops.
Car-parks are prominently marked (including some not on the OS maps), very useful if you're driving to your hill walk.
This map covers south to north Ambleside to Keswick west of the Kirkstone Pass : the entire Helvellyn range, including Fairfield & Saint Sunday Craig in the east and west to the Langdale Pikes, High Raise, High Seat. All the hills in Wainwright book 3 "The Central Fells" and book 1 "The Eastern Fells" covered. You can see area covered for map on the Harvey site [...]
Weak points compared to OS? Not any practical ones. Artistically OS maps are nicer, and I've found some minor walls seem to have been missed in lowland farm areas. Less detailed contouring - but I think this is an advantage in mountain navigation because of the enhanced clarity.
The more I've used them the happier I am with them.
I have used the OS Landranger maps for getting on for 20 years but often strugle with identifying paths. This is due to my red-green colourblindness and the sheer amount of ink on an OS map. The Harvey maps use a much more friendly colour scheme and have a less densely printed appearance - also useful as your eyesight weakens. As my OS maps fall apart I am replacing with Harveys (waterproof as well for a low price)
I was well impressed when the map arrived through the post, having thought for a long time that the join between the OS 1:25,000 maps in the centre of the Lake District was very unhelpful to walkers in the Langdale area. The map includes all the Wainwrights in red type so you can't miss them (as if) and is much easier to handle than the double sided OS maps which I find just too big when out on the fells. I suppose my only grumble is that the western edge of the map doesn't go quite far enough into Great Langdale because of the cover being printed on the map area, but that is compensated by the overlap with Lakeland West. I haven't tried it in the rain yet to see how waterproof it actually is.