Snow
Travel
Spring
season hikers may occasionally encounter snowpack in forested
terrain above 8000 feet. Although a potential concern over only
a limited portion of the 700 mile route, this residual winter
snowpack can occasionally be deep and prevalent enough to warrant
careful consideration before attempting to negotiate it.
In heavier
snow years, the best strategy may be to delay the start of your
thru-hike in order to allow the snowpack more time to coalesce
and melt, which will decrease both its depth and area of coverage,
making any snow travel less laborious and time consuming. Consider
starting eastbound from Phoenix in early April, and taking a full
2 months to complete your trek. Don't begin too late, though,
in order to avoid prolonged stretches of hot, dry weather in the
low country.
The following
table shows where along the route you may encounter snow when
thru-hiking eastbound during spring seasons of average
to somewhat above average snowpack.
|
Milepoint
/
[Tr.Segment]
|
Range
|
Area
of Potential Concern
|
Elevation
|
Prevalence
of Snowpack
|
Bypass
/ Detour
Worthwhile?
|
|
190 [10]
|
Pinalenos
|
10-12
mi
|
to
10,100'
|
more
continuous
|
sometimes
|
|
346
[20]
|
Mogollons
|
10-15
mi
|
to
10,770'
|
more
continuous
|
often
|
|
431
[23,24]
|
Black
Range
|
0-10
mi
|
to
9,800'
|
less
continuous
|
rarely
|
|
495
[28,29]
|
San
Mateos
|
0-12
mi
|
to
10,100'
|
less
continuous
|
rarely
|
|
524
[31]
|
Magdalenas
|
0-5
mi
|
to
10,400'
|
less
continuous
|
sometimes
|
|
652
[35]
|
Manzanos
|
0-9
mi
|
to
10,100'
|
patches
|
rarely
|
|
721
[38,39]
|
Sandias
|
0-6
mi
|
to
10,650'
|
patches
|
rarely
|
 |
| Snowpack
coverage map - click to view |
With the exception
of the Pinaleno Range, note that the Arizona G.E.T. would be expected
free of snow concerns during an eastbound thru-hike. Only in the
high country of New Mexico could snow again become a factor, and
then generally diminish in concern as you proceed east and the snowpack
continues to melt.
Detouring
to Avoid Spring Snowpack
When considering
whether to skip a snowy section of the route, keep in mind that
all snow isn't necessarily a problem. By its nature, melting spring
snowpack is a ready source of drinking water. It feeds creeks
and springs on the mountain ranges, and can itself be melted over
a campfire or stove to provide drinking water. In this respect,
snow can be your ally in an otherwise arid land, in addition to
providing a wonderful contrast in scenery and experience.
 |
| Discernable
only as a corridor through the trees, trail at 9500' in the
Mogollon Mtns lies buried in 2.5 feet of hard, sloping snow,
late April '05 |
Snow becomes
an issue wherever it is deep, steep, or prevalent over a large
area. Spring snowpack in the Southwest tends to be inconsistent
in its ability to bear loads, and deep snow can sometimes cause
you to posthole laboriously. Where hardpacked or frozen snow occurs
in steeper terrain, exposure to sliding accidents may become a
concern, particularly in open forest environments (cirques and
headwalls are not present in this region, nor is avalanche danger
in spring). In addition, most forest trails that the G.E.T. uses
are not marked for winter use, and you may have trouble following
them in untracked snow.
The guidebook
describes specific snowpack concerns and alternate routes to take
in each region. Suffice it to say here that you probably will
only need to consider detouring around portions of two
ranges - the Pinalenos and Mogollons - and a mile of trail on
the north slope of South Baldy in the Magdalena Mountains. All
other regions you can expect will be passable, with only short
snowbound sections or patches of snow that can be circumvented
if necessary.
Use
of Crampons and Ice Axe
Spring thru-hikers
should consider bringing lightweight instep crampons or "ice
walkers" when heading into snowbound segments of the route.
These will improve traction on steep, hard snow, and allow you
to follow a trail's line as it switchbacks or contours along steeper
slopes. Unless snowpack is determined to be minimal, carry crampons
over the Pinalenos, Mogollons, and Black Range. Consider mailing
them home from Monticello, or at Magdalena if South Baldy may
pose a concern.
An ice axe
would only be warranted if traversing the snowbound Mogollon Range,
rather than detouring around it. Unless you have prior experience
with high altitude snow travel and routefinding, this is the one
range to strongly consider avoiding in a snowy spring. The Mogollons
are tall, rugged, and remote, and you will need to rely on map,
compass, GPS, and guidebook to determine where the snowbound trail
in fact goes. Due to the steepness of mountain slopes, you will
face some moderate exposure and should be practiced in self-arrest
techniques. Mail an ice axe to Glenwood,
and carry it as far as Monticello,
for a total distance of about 150 miles. (Or divest yourself of
it at Gila Hot Springs
if you can find someone willing to mail it for you.) Otherwise,
walk around the worst of the snowpack and come back to enjoy the
Mogollons later in the season.
Current
Snowpack Conditions
The USDA National
Water and Climate Center maintains snowpack data for western states
including Arizona
and New
Mexico. "Snotel" sites monitor snowpack conditions
in real time, and this data is made available on the NWCC website,
offering a snapshot of regional conditions at given elevations.
In particular, Silver
Creek Divide snotel offers an idea of what to expect in New
Mexico's Mogollon Mountains, while McKnight
Cabin and Lookout
Mountain offer perspective on the Black Range. Use this information
to get a feel for the type of snow season (and in turn water season)
that is unfolding across the region.
 |
| Old
snow patches pose minimal concern at 10k on Manzano Peak,
mid-May '05 |
|