My order came to me in just a few days! Much faster than I expected and it arrived in great condition. Thanks!

In comparison to the National Geographic Trail illustrated maps Tom Harrison Maps have more user features such as more trail mileage markers and they are slightly more detailed scale. I like the colors of the Natl Geo maps better though. I really like how he's broken his JMT maps into one day's worth of hiking so that you only need one sheet out at a time.
Note this map pack is centered on the JMT if you are looking for other hikes near the JMT or the connector trails to the various trailheads there is very little additional coverage. If you are actually hiking the JMT only they are excellent.

Tom creates the best maps around. I don't know he does it all by himself. I love having the UTM grid on each page. Each of the 13 pages has just the right amount of detail for my through hike. I think you would be foolish to do the JMT without these.

If you are planning on hiking the JMT, buy this! It is EXACTLY what you need and no more.

I've used the same set of Harrison's JMT maps a couple of times now, the first hike took 30 days and second took 18. They're durable, for sure. The scale (1:63,360) is appropriate for the set of 13 8.5"x11" maps - if you really, really hustle you can hike a map per day. The size means you don't have to unfold a huge sheet of paper each time you want to check where you are. The mileage between waypoints on the trail is clearly marked. The maps don't have the detail of 7.5-minute USGS maps but you wouldn't want that kind of detail for this hike. Harrison also has some larger maps, e.g., "Sequoia & King's Canyon Nat'l Parks" with a 1:125,000 scale but the size is inconvenient for the JMT hike. Conceivably you could scissor his larger maps to make a map of the trail but since he's already done the job about perfectly, why bother? (Incidentally the JMT runs between Mt. Whitney and Yosemite's Happy Isles, so being disappointed at not getting a Mexico-to-Canada map doesn't make very much sense.)

I purchased this Tom Harrison map set to thru-hike the JMT. At the same time I ordered the maps from the national park service. The T.H. maps are thin, tearproof, waterproof, lightweight and they pack down into a small size. The NPS maps are paper, they tear easily, they'd be damaged easily by water, and because they cover the 3 parks/national forests, rather than just the trail, they are about 10 times as large and heavier. When I go hiking later this year, the T.H. maps are coming with me. The NPS maps are staying at home.

They were fine, but we expected the whole trail from S.California to Canada. Really think it was my over look.

These set of maps are just what all of us would have created had we the time and technology. They are the perfect companion for the JMT hiker - far better than a standard paper map. Mark them, erase the marks, drop them in water, stuff them in you pack and they're still like new. An excellent product.