On a map or from a high vantage point, some routes seem perfectly logical. A straight line between a forest and a feeding area, a large meadow easy to cross, a farm track connecting two wooded areas, or a ridge offering the shortest path.
However, when one actually observes the signs left by the game, the movements often follow a very different logic.
The footprints disappear behind a change in slope. A flow skirts around a ridge instead of crossing it. The animals follow the bottom of a small valley even though a much more direct route exists just a few dozen meters higher. An apparently unremarkable back slope suddenly concentrates several passages.
This behavior is not due to chance.
For an animal, the terrain is not simply a series of ups and downs. It constitutes a true system of protection.
A height difference of only a few meters can be enough to completely hide a movement from a road, a path, or a dwelling. A small fold in a meadow can become an invisible corridor. A slope facing a different direction can offer more tranquility, coolness, or cover.
The hunter often watches the territory from places that offer the best visibility.
The game can precisely seek the opposite: the places from which it is least visible.
Understanding this difference allows us to read a territory differently. A large part of the movements do not necessarily take place on the most obvious routes, but rather in the small imperfections of the terrain that allow the animal to move around while remaining discreet.

Relief is a form of cover.

When we talk about cover, we immediately think:

• forest ;
• hedge ;
• bramble ;
• dense vegetation.
  However, the ground itself can serve exactly the same function.
  An animal located only two meters below a ridge line can become completely invisible from the other side.
  A small depression can hide a roe deer in a plot that seemed completely open.
  The relief therefore creates a bare (land).
  This is particularly interesting in agricultural sectors where woodlands are scattered and large areas appear to be exposed.

A few meters of elevation difference can be enough.

The mistake often lies in looking only for the large valleys or the spectacular landscapes.
In reality, the most interesting differences can be very modest.
A slightly sunken path.
An old parcel boundary.
A small valley.
A mound.
A hollow created by erosion.
From the ground, these shapes completely alter the sight lines.
In an aerial photograph, they can be almost invisible.
This is one of the reasons why field reconnaissance remains essential.

What is a counter-slope ?

Imagine a hill.
From your position, you see the slope that faces you.
The part located behind the summit ridge constitutes the other slope, invisible from your position.
It is this logic that makes counter-slopes particularly interesting.
An animal can move parallel to a ridge while remaining completely hidden from an observer located on the other side.
He then benefits from a kind of permanent natural screen.
The phenomenon is particularly visible in hilly areas, but it also exists on a much smaller scale.

Why not simply go over the ridge ?

Because a ridge often increases exposure.
Upon reaching the summit, the silhouette can stand out.
The lines of sight become longer.
The wind can also be different, and the animal temporarily leaves the protection created by the terrain.
This obviously does not mean that game systematically avoids the summits.
He can easily cross them when it fits his route.
But when a lateral movement is possible just below the ridge line, it can offer greater discretion.

Animals often use natural contour lines.

In a rugged terrain, continuously going up and down requires more energy.
A movement following approximately the same altitude can therefore present several advantages.
The animal limits the effort while possibly remaining protected by the slope.
This is how some flows follow a slope horizontally for several hundred meters.
For an observer positioned higher up, this trajectory may seem strange.
For the animal, it sometimes combines:

• Energy saving ;
• discretion ;
• access to multiple areas.

Energy saving remains an important factor.

As with fences and ditches, game does not necessarily have an interest in choosing the physically most demanding path.
A steep climb requires more effort than a gradual diagonal.
An animal moving between a resting area and a feeding area can therefore follow a longer but less steep route.
On a map, this route seems unnecessarily roundabout.
In reality, it can be much more economical.

A longer route can therefore be more logical.

Humans easily estimate a displacement in distance.
The animal must manage other parameters:

• slope ;
• security ;
• covered ;
• disturbance.
  A route of 700 meters can thus be preferable to a direct route of 500 meters if it avoids a steep slope and an exposed area.
  This logic explains many flows that seem to "bypass" the terrain unnecessarily.

The terrain folds become real corridors.

A gently rolling meadow can appear completely open from a height.
Then position yourself at ground level.
A small gap can be enough to make an animal disappear.
These folds are extremely interesting because they can connect two cover areas without the game being heavily exposed.
The movement then becomes almost invisible from certain directions.
This type of passage is sometimes used much more than an obvious hedge located nearby.

An invisible passage can exist in the middle of an open plot.

It’s counterintuitive.
One might think that the game will always follow the edges.
However, a hollow crossing a plot can provide more protection than an edge heavily frequented by humans.
An old gutter, a depression, or a small slope break can constitute a true axis.
From a distance, the animal seems to be crossing in full view.
At the level of his eyes, reality can be completely different.

The height of the animal changes our perception.

A standing human observes the ground from about one and a half to two meters away.
A roe deer has a much lower line of sight.
A wild boar even more so.
An obstacle or a break that seems insignificant to us can therefore obscure a significant portion of its body.
It is essential to understand the terrain from the perspective of the game.
The landscape we see is not exactly the one he perceives.

Valley funds offer several advantages.

A valley bottom can act as a natural pathway.
The slopes located on each side reduce certain sightlines.
The vegetation there is sometimes different.
Humidity can promote denser coverage.
Hedges or waterways can also naturally follow the terrain.
The result is a corridor combining several favorable elements.
Animals can then use it to connect different parts of the territory.

But not all valley bottoms are attractive.

A valley bottom crossed by a very busy road obviously does not offer the same tranquility as a small isolated forested hollow.
Some can also be very wet or difficult to traverse depending on the seasons.
The terrain should therefore never be interpreted alone.
It must always be combined with:

• human activity ;
• vegetation ;
• resources ;
• soil conditions.

The wind behaves differently in the terrain.

The terrain also influences air movements.
A relatively steady wind in open terrain can become much more complex in a valley or behind a ridge.
The air masses are deflected.
Turbulence is occurring.
Depending on the conditions, the air can also move differently throughout the day.
This complexity can influence the way animals use certain areas.
But it is necessary to avoid the simplistic rule that a specific type of wind would always produce the same passage.
The actual conditions depend greatly on the terrain.

Thermal movements add another dimension

When the ground warms up or cools down, the air can move along the slopes.
These phenomena are well known in mountainous environments but can also occur on a smaller scale.
They explain in particular why the same area can have different air movements between the morning and the evening.
The game that moves daily within the territory has repeated experience of these conditions.
The occasional observer, on the other hand, may only discover them after several visits.

A counter-slope can also reduce the perceived noise.

The terrain does not only obstruct lines of sight.
It can also modify the propagation of certain sounds.
A small mound or a break in the terrain creates a partial screen.
In a busy area, this separation can help create a space perceived as more peaceful.
The phenomenon is not absolute, but it contributes to the difference between two sectors that are nevertheless very close.

True tranquility is not always where we imagine it to be.

A plot of land may seem far from dwellings but be regularly crossed by walkers.
Conversely, a small valley relatively close to human activity can remain almost never traversed.
The game gradually learns this geography of disturbance.
So it is not necessarily the distances that matter.
It is the actual frequency of intrusions.

Human paths influence the choice of slopes.

A slope accessible from a forest path can be regularly disturbed.
The slope located behind receives far fewer visits.
Two areas separated by only a few dozen meters can thus experience very different levels of tranquility.
This difference can explain why the indices consistently focus on one side of the terrain.

A change in human activity can quickly shift the flows.

A new path.
A forest clearing.
Agricultural work.
A leisure activity.
The physical terrain remains the same, but the tranquility changes.
Animals can then shift their routes to another slope or a nearby valley.
As with crossing points, abandoning a game trail does not necessarily mean the disappearance of the game.
He may have simply found a better solution.

Discounts are often associated with protective reliefs.

An interesting resting area does not depend solely on the density of vegetation.
The terrain can greatly enhance his sense of protection.
A wooded plot located below a slope break can be much quieter than similar vegetation at the top of a ridge.
The animal then benefits from both:

• of the vegetation cover ;
• of the relief mask.
  These combinations are particularly interesting when reading a territory.

Sun exposure can also differentiate two slopes.

Two opposite slopes do not receive light in the same way.
The temperature and humidity can therefore vary.
These differences influence:

• vegetation ;
• thermal comfort ;
• availability of certain resources.
  Depending on the season, the game may favor one slope over another.
  An area that is interesting in winter can be much less used during a warm period.

The intense heat increases the appeal of certain low and shaded areas.

In summer, a wooded valley or a less exposed slope can retain more coolness.
The animal can find more comfortable conditions there during part of the day.
This does not mean that all animals systematically go down to the bottom of the valleys when it is hot.
But temperature, cloud cover, and tranquility can combine to make certain areas more attractive.

In winter, logic can sometimes be reversed.

A slope receiving more sunlight can offer more favorable conditions.
Snow or frost can also develop differently depending on the exposure.
Once again, the same type of land can change in value depending on the period.
That is why a passage should never be considered good "all year round" without observation.

The rain sometimes reveals hidden paths.

After a wet period, small depressions and valley bottoms can retain more traces.
The ground becomes an excellent reading surface.
Almost invisible flows in summer suddenly appear thanks to:

• to the fingerprints ;
• To the displaced mud ;
• to the turned-over leaves.
  It is often an opportunity to discover that a seemingly little-used route is actually a regular thoroughfare.

The dead leaves also reveal the movements.

In the forest, a flow located on a slope may have slightly different soil.
The leaves are moved.
The earth appears locally.
On a regularly used trajectory, this difference becomes visible.
It is necessary, however, to distinguish an animal crossing from a simple runoff effect.
Observing the footprints and the continuity of the path helps to avoid misinterpretations.

Water follows the terrain, and sometimes the game does too.

The talwegs and small valleys naturally concentrate the flow.
They can therefore present:

• humidity ;
• small springs ;
• specific vegetation.
  These elements can provide additional resources.
  But they can also make certain sections difficult to traverse.
  The game can then follow the valley while staying slightly above the damp bottom.
  This is an excellent example of how a flow can follow the terrain without being located exactly at its lowest point.

Animals may prefer the slope break rather than the bottom itself.

A change in slope sometimes offers a particularly interesting compromise.
The animal remains hidden from one direction while avoiding moisture or obstacles on the bottom.
We then find flows parallel to the valley, a few meters above it.
At first glance, they seem to be placed arbitrarily.
In reality, their height often corresponds to an optimal combination of ease and safety.

The mountain passes and low passages concentrate the crossings.

When an animal has to cross a ridge line, it may look for a slightly lower area.
A small pass or a saddle then constitutes the topographic equivalent of an opening in a fence.
It reduces the effort needed to go from one slope to the other.
Several routes can converge there.
It is once again the principle of the funnel applied to the terrain.

A saddle can be tiny and yet very important.

It is not necessary to be in the mountains.
Between two small mounds, a relatively small difference in altitude can be enough.
The game takes advantage of this weakness in the terrain.
In the field, the signs may show a clear concentration of movements.
On a detailed map, contour lines can sometimes help identify these areas even before reconnaissance.

The topographic map then becomes much more useful.

An aerial photograph clearly shows:

• wood ;
• cultures ;
• hedges.
  However, it can obscure the actual shape of the terrain.
  A map with contour lines allows you to identify:
• valleys ;
• ridges ;
• columns ;
• slopes.
  The two tools are complementary.
  The photograph explains the ground cover.
  Topography explains its geometry.
  But none can replace visiting the territory.

Digital maps can exaggerate the simplicity of the terrain.

When looking at a screen, everything appears clean.
A line connects two sectors.
The terrain appears gradual.
On site, a small break can completely change the route.
That is exactly why the best observations often arise when confronted with:
map + land + clues.
None of these three elements is sufficient on its own.

Why visually follow a flow beyond a few meters ?

An isolated footprint indicates a presence.
A trajectory provides much more information.
Try to understand how the flow reacts to the terrain.
Is she climbing directly ?
Is it following a contour line ?
Is she going around the hill ?
Does she disappear behind a breakup ?
This behavior allows understanding the logic of the movement rather than simply observing the passage.

Relief intersections are particularly revealing.

Some areas bring together:

• valley bottom ;
• hedge ;
• small saddle ;
• forest edge.
  When multiple landscape features converge, movements can become concentrated.
  The reason is simple: several constraints simultaneously direct animals towards a relatively small area.
  These places can become true natural crossroads.

A beautiful flow does not necessarily indicate the best viewing spot.

It is important to maintain a clear distinction.
Understanding where the game passes does not automatically mean that one should increase the number of intrusions in that area.
Some routes are particularly interesting precisely because they remain quiet.
Constantly frequenting them can change what you were trying to observe.
The analysis of the territory must therefore remain as discreet as possible.

The terrain can also conceal your own approach to the game.

From the animal's point of view, the terrain hides certain human movements.
That is why human activity can be tolerated in a neighboring valley while an intrusion on the same slope triggers an immediate reaction.
What matters is not only the distance.
It is the ability for the animal to perceive:

• movement ;
• noise ;
• smell.
  An intermediate relief can modify several of these pieces of information.

Camera traps can confirm a discreet axis.

When used in accordance with the applicable regulations, they can help verify whether a path identified by the tracks is still actually in use.
They are particularly useful for small flows hidden behind a terrain break.
A place where you almost never see any animals can show regular activity at completely different times.

The stability of the observation remains important.

As with other passages, constantly moving a device or visiting the area daily makes interpretation more difficult.
To understand a trend, you need to allow time to generate data.
The variations of a single day do not necessarily have any significance.

The season can completely reorganize travel.

A valley much used in summer can lose some of its appeal after the leaves have fallen.
A quiet back slope can become busy after the start of agricultural activity elsewhere.
A harvested crop can remove a visual screen.
The transportation network is therefore constantly evolving.
The structure of the relief remains stable, but the elements surrounding it change.

The relief remains nonetheless one of the most enduring features of the territory.

A culture changes in a few months.
A hedge can be trimmed.
A tree can be cut.
But a valley or a ridge remains.
That is why certain major routes of movement can remain logical for a very long time.
The exact detail of the flow sometimes shifts, but the overall structure remains.
Understanding topography therefore allows one to go beyond isolated observation.

We must learn to view the territory from the perspective of the game.

It is probably one of the best reading exercises.
When you observe a plot, ask yourself:
What would I see if my eyes were one meter lower ?
A small mound suddenly becomes much more important.
A ditch becomes a real screen.
A meadow perfectly open from your position can become a network of hidden areas.
This simple change of perspective explains a lot of behaviors.

The best route is almost never determined by a single factor.

Recipes should be avoided.
"The game always follows the valleys."
"The roe deer always stay below the ridges."
"Wild boars always use the lowest point."
None of these statements work universally.
The actual displacement depends simultaneously on:

• relief ;
• covered ;
• resources ;
• disturbance ;
• season ;
• weather.
  The hunter's job is precisely to understand how these factors add up on its territory, rather than applying an absolute rule.

Conclusion

Why do game animals use so much the lee slopes, terrain folds, and valley bottoms ?
Because the terrain is much more than just a physical constraint.
It can offer:

• visual protection ;
• Energy saving ;
• tranquility ;
• discreet access between several sectors.
  A ridge line can expose an animal while moving just a few meters lower makes it practically invisible.
  A small depression can turn an open meadow into a true corridor.
  A valley bottom can connect two mountain ranges while limiting sight lines.
  And a small saddle can concentrate several routes simply because it represents the least costly crossing of a ridge line.
  This reading explains why certain movements seem illogical when viewed from a map.
  We mainly see the distance.
  The game must take into account effort, safety, and disturbance.
  The shortest route is therefore not necessarily the best.
  The true teaching is above all to consider Relief as a form of cover in its own right.
  You need to look at the woods and hedges, but also at the hollows, breaks, valleys, back slopes, and small saddles.
  Then compare this reading with the clues actually present on the ground.
  A footprint gives a position.
  A flow provides a route.
  Relief often helps to explain Why is this route located precisely there and not fifty meters further away?.
  And when you begin to read a territory in this way, a meadow is no longer simply a meadow and a hill is no longer just a slope.
  The landscape becomes a series of visible corridors for those who know how to look for them, but often sufficiently hidden to allow game to continue moving without being seen.

FAQ

Why does game use the lee slopes ? They can hide its movements from the other side and offer more tranquility.
Does game always avoid ridges ? No. It can cross them regularly, but some lateral movements are more discreet slightly below the ridge line.
Why do animals sometimes move along a slope horizontally ? This can limit the effort while maintaining the protection offered by the terrain.
Can a small hollow in a meadow really hide a roe deer ? Yes. The reduced height of the animal makes certain microreliefs much more effective than they seem to be for a standing human.
Why do valley bottoms attract game ? They can provide visual cover, vegetation, tranquility, and continuity between several areas.
Is the lowest point of a small valley always the best passage ? No. A flow can be located slightly above to avoid moisture or overly difficult vegetation.
Does the game always choose the shortest path ? No. A longer route may require less effort or offer greater safety.
Why do small mountain passes concentrate the crossings ? They sometimes allow crossing a ridge with less elevation change.
Does the weather affect the use of the terrain ? Yes. Temperature, rain, wind, and air movements can change the appeal of certain slopes.
Does the season influence the counter-slopes used ? Yes. Vegetation, sun exposure, crops, and disturbance change throughout the year.
Why can two nearby slopes be frequented very differently ? They can exhibit differences in tranquility, temperature, vegetation, or human activity.
Can an open set contain a discrete sequence ? Yes. A small terrain fold can hide animals enough to become a real pathway.
Do maps allow you to find these passages ? Contour lines allow for the identification of certain structures, but field recognition remains essential.
Why is it important to observe a lava flow beyond the initial footprints ? Its direction and its relationship with the relief allow for understanding the logic of the movement.
Do animals always use the same terrains ? Not necessarily. The routes can change depending on resources, disturbance, and seasons.
Can the relief replace the vegetation cover ? It can provide excellent visual protection even in an area with little vegetation.
Why should you avoid constantly visiting a lava flow ? Repeated intrusions can disrupt the tranquility that makes this route attractive in the first place.
What is the best way to understand the terrain from the perspective of the game ? Observe the lines of sight from a height closer to that of the animal and compare this observation with fresh signs.