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Climbing Pliny Mountain

Climbing Pliny Mountain

Pliny Mountain is a 3605′ mountain close to Mt Waumbek, a 4000 footer in the Pliny Range of the White Mountain National Forest which includes Mt Starr King and the three Weeks, North, Middle, and South. It’s considered a trailless peak but can still be accessed, at least partway, by the abandoned Priscilla Brook Trail which runs to height of land between Waumbek and Pliny. From there, it’s a bushwhack to the Pliny summit. Incidentally, Waumbek was originally named Pliny Major.

There are many abandoned trails in the White Mountain National Forest, some that are still hiked quite regularly, some which are unofficially maintained, and some which are long forgotten and have been reabsorbed by the forest. For example, the FireWardens Trail on Mt Hale, the Downs Brook Slide Trail on Mt Passaconaway (also referred to as the Passaconaway Slide Trail), the Skull Cairn Trail on Mt Chocorua, the Osseo Trail to Mt Whaleback, the Mt Bemis Trail to Mt Bemis, and the Wildcat Brook Trail to Wildcat E (links to trips reports where I’ve hiked them).

Upper Ammonoosuc Trail USGS 1915-1945
Upper Ammonoosuc Trail USGS 1915-1945

Some of us even collect old White Mountain Guides and maps so we can locate these trails and visit them. My 1972 edition of the White Mountain Guide lists the Priscilla Brook Trail and notes that it will be abandoned. The 1963 edition does not mention it but does describe the Keenen Brook Trail which follows the same route on the included map. Keenen Brook is also mentioned in the 1952 edition, but not as a trail, leading one to believe that the brook was renamed sometime between 1952 and 1963. Even earlier than that, the same route was named the Upper Ammoosuc Trail, as shown on the 1915-1945 USGS map, where it runs to Bog Dam, south of York Pond and the Berlin Fish Hatchery. The fact that remnants of the  Priscilla Brook Trail can be found close to 75 years later is an example of how hard it is to retire a trail, even a lightly used one, once it has been established.

The abandoned Priscilla Brook Trail is still easy to follow.
The abandoned Priscilla Brook Trail is still easy to follow.

Today, Mt Pliny is on the NH500 Highest List which I am methodically climbing peak by peak. It’s a fun but challenging peakbagging lists to climb because many of the mountains don’t have trails and they’re widely dispersed across the entire state. It’s a lot like geocaching I suppose, but with a lot more strenuous hiking involved.

Finding the Priscilla Brook Trail trailhead is easy if you load the “Historic Topo 1930” in GaiaGPS. There’s space for 2 cars at its bottom. It’s completely unmarked, unsigned, and unblazed but the trail, which is an old logging road, is easy to follow without a GPS or compass since the brook runs alongside it. There are blowdowns, mud, and encroaching vegetation to walk around and push through, but nothing significant. The trail is clearly used still, although I suspect mostly by wildlife judging by the tracks. I saw animal tracks made by moose, bear, and the elusive Vibram.

Pieces of an old logging camp stove.
Pieces of an old logging camp stove.

I followed the trail up to 2500′ to an open area that looks like it was an old logging camp, judging by the logging paraphernalia scattered around.  There were pieces of an old stove, old metal buckets, gas cans, and a barrel strap. These are all considered archeological artifacts and cannot be removed by law since its still part of the White Mountain National Forest.

While it looks dense, the climb to the summit was fairly tame.
While it looks dense, the climb to the summit was fairly tame.

The Priscilla Brook Trail becomes much harder to hike above 2500′ though. There are numerous blowdowns, rocks with ankle-twisting voids between them, and mud. I kept it up until about 2800′ when I saw a skidder track heading toward the summit and got off to follow it. It led to another skidder track which started to climb to Pliny’s west ridge. When it petered out, I kept going, climbing up and towards the ridge through a light understory of rotting trees, fern, and hobblebush. This continued all the way to the summit area and the highpoint was easy to find.


The summit canister is an old jar with a logbook inside. I signed in and chugged a liter of water. There weren’t any views, so I started my descent. I thought about retracing my steps but decided it would be worth trying to avoid as much of the upper portion of the Priscilla Brook Trail as possible, above the logging camp. I succeeded in doing that, descending on a fairly open line through an understory of hobblebush. From the logging camp down, I just had to follow the Priscilla Brook Trail down and avoid as much of the mud as I could.

Recommended Hiking Navigation Tools

I carry and use all of these navigation aids on hikes, both on-trail, and off-trail, in addition to a paper map. The most reliable tool is the compass, by far, because it only relies on the earth's magnetic field to operate. The others are also excellent, but they can generate false positives in the field and it's useful to have a compass along so you can verify the information they provide. 

  • Casio ProTrek Solar Powered Altimeter Watch - are you sick of changing or charging your watch's batteries? This multi-function watch is solar-powered and the watch band is replaceable. It never needs recharging and I never take it off. It has time, date, compass, temperature, altimeter, barometer, stopwatch, backlit display blah blah. I mainly use the time and the altimeter. 
  • Suunto M3 Declination Adjustable Compass - great compass.  Set the declination and forget it. True north eliminates ever having to add or subtract degrees when going back and forth with a map and compass. I have the M3-NH (Northern Hemisphere) model. They also have an SH model and a G-model, which means it's a global compass that can be used north or south of the equator.
  • GaiaGPS Navigation App - there are some things about Gaia that really annoy me, but they have a lot of different maps and map layers to help you figure out where you are in the field. I mainly use the Gaia Topo and TF Outdoors base maps with the Slope Angle and the US Roads layer, which has forest/park service roads, fire roads, some snowmobile trails, and unpaved roads.  You can't carry all these maps at once unless they're available in digitized form on your phone. 
  • Caltopo - Caltopo doesn't have the programming staff that GaiaGPS does, but I still like it much better than Gaia's route planning tool. This is what I use on my laptop to plan and document my hikes. It's also very convenient for big picture planning especially when you're trying to block out a number of alternative routes. Caltopo also has an app, but I like Gaia's much better.

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About the author

Philip Werner has hiked and backpacked over 8500 miles in the United States and the UK and written over 3000 articles as the founder of, noted for its backpacking gear reviews and hiking FAQs. A devotee of New Hampshire and Maine hiking and backpacking, Philip has hiked all 650+ trails in the White Mountains twice and has completed 10 rounds of the 48 peaks on the White Mountains 4000 footer list with over 540 summits in all four seasons. He is also the author of Backpacking the White Mountain 4000 Footers, a free online guidebook of the best backpacking trips in the White Mountains in New Hampshire and Maine. He lives in New Hampshire. Click here to subscribe to the SectionHiker newsletter.


  1. Google maps lists Priscilla Brook Trail as a viable path to summit Waumbek (if you are walking in from Gorham ? (plus….some other Stuff lol)

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