Trip Grading: Alpine System:

With Alpine System: The overall seriousness of the complete route based on all factors of the final approach, ascent and descent including length, altitude, danger, commitment, and technical difficulty. This system originated with UIAA Roman numerals; it is now generally seen with French letters and is increasingly being used worldwide. Please consider that the grading system using here is informative purpose as grading system may influences by personal experiences.

A:	Incentive Tours and Hiking Below 3000 meters from sea level
B:	(Moderate) Hike Altitude 3000m to 4000m from sea level
F:	(Strenuous) (Base Camp and Remote Trekking)
PD:	(Tough) (Adventure passes but not trekking peak)
AD	More Technical High Pass than PD
D:	(Very Tough) (Adventure trekking peak Climbing)
TD:	(Mountaineering & Expeditions)
ED	More Technical Mountaineering and Expedition than TD
ABO	Abominablement difficile (Abominable)

TOURS, BASE CAMP AND REMOTE TREKKING:

A:
Incentive Tours and Hiking below 3000 m. from sea level

Experience is not necessary at this level: anyone who is in good health and fit enough to enjoy a good weekend hill walk can manage an "A" grade. Usually, A grade treks are shorter  in duration and at lower than 3000m altitudes; often they are optional, giving a chance of a rest day. However, walking always involves some exertion: trails are seldom flat, and you must still expect to have a reasonable amount of ascent and descent. You would normally walk for 4 to 5 hours during the day.

B:  
(Moderate) (Altitude 3000m-4000m trekking from Sea Level)

Most people who enjoy a weekend or longer duration in the hills or mountains at home are capable of undertaking a trek at this level: you need to be in good health and reasonably fit, and you will almost certainly be taking regular exercise. A trek could be graded "B" either as a fairly easy medium-duration walk, or as a harder, shorter walk. Some walking at 3000m to 4000m altitude and the occasional longer or more difficult day may be involved, but generally conditions underfoot will be fair. A walking day would normally be between 5 to 6 hours long and no experience is necessary.

F
(Strenuous) (Base Camp and Remote area Trekking)

A straight forward route, possibly describing a glacier approach with simple scrambling. Any snow or ice will be of an easy angle allowing the climber to walk up it.

HIGH PASS TREKKING (PASS CLIMBING)

PD Peu difficile (not very hard):  
(Tough) (Adventure High Pass Trek)

Harder than routes graded F, with more complex glacier routes, harder scrambling and objective dangers. Routes may also be longer and at altitude.  Snow and ice slopes of up 35-45 degrees may be encountered.

AD Assez difficile (fairly hard):
(More Technical High Pass than PD)

TREKKING PEAK CLIMBING & HIMALAYA EXPEDITIONS

D Difficile (hard) :
(Very Tough) (Adventure Trekking Peak Climbing)

 A more serious undertaking with possibility of rock climbing at around grade IV & V and snow and ice slopes of up 50-70 degrees.

TD Tres difficile (very hard) :  
(Mountaineering & Expeditions) (Except trekking peaks)

Significant and sustained snow and ice slopes of up 65-80 degrees are likely encountered. Hard rock climbing is also a possibility at grades V - VI with some aid routes also a possibility. Routes at this grade are a serious undertaking with high levels of objective danger.

ED Extremement difficile (extremely hard) :
(More Technical Mountaineering & Expeditions than TD)

Extremely hard routes with vertical ice slopes likely and rock climbing at VI to VIII. Aid pitches are also possible with exceptional objective danger.

ABO Abominablement difficile (Abominable) :  Pretty self explanatory!