The one kilometer trail is
the only visitor facility. It is accessible to the physically
challenged.
Visitors absolutely must not
venture off the designated trail, in order to preserve this
delicate area for future generations.
To log the cache, you must
e-mail the cache owner the answer to these questions:
1) On what type of glacial
moraine is Trillium Woods situated?
2) The rich nutrient level
in a glacial moraine soil is able to support a wide range of trees
and plants. The province has labelled many of the trees along the
trail. List the common names of six of these trees.
To help with Question #1,
here is an excerpt from
The Geography Site:
Moraine is material transported by a glacier and then
deposited. There are eight types of moraine, six of which form
recognisable landforms, and two of which exist only whilst the
glacier exists.
The types of moraine that form landforms are Ground, Lateral,
Medial, Push, Recessional and Terminal.
Ground Moraine
Ground moraine is till deposited over the valley floor. It has no
obvious features and is to be found where the glacier ice meets the
rock underneath the glacier. It may be washed out from under the
glacier by meltwater streams, or left in situ when the glacier
melts and retreats.
Lateral Moraine
Lateral moraine forms along the edges of the glacier. Material from
the valley walls is broken up by frost shattering and falls onto
the ice surface. It is then carried along the sides of the glacier.
When the ice melts it forms a ridge of material along the valley
side.
Medial Moraine
Medial moraine is formed from two lateral moraines. When two
glaciers merge, the two edges that meet form the centre line of the
new glacier. In consequence two lateral moraines find themselves in
the middle of the glacier forming a line of material on the glacier
surface. The existence of a medial moraine is evidence that the
glacier has more than one source. When the ice melts it forms a
ridge of material along the valley centre.
Push Moraine
Push moraines are only formed by glaciers that have retreated and
then advance again. The existence of a push moraine is usually
evidence of the climate becoming poorer after a relatively warm
period. Material that had already been deposited is shoved up into
a pile as the ice advances, and because most moraine material was
deposited by falling down not pushing up, there are characteristic
differences in the orientation of rocks within a push moraine. A
key feature enabling a push moraine to be identified is individual
rocks that have been pushed upwards from their original horizontal
positions.
Recessional Moraine
Recessional moraines form at the end of the glacier so they are
found across the valley, not along it. They form where a retreating
glacier remained stationary for sufficient time to produce a mound
of material. The process of formation is the same as for a terminal
moraine, but they occur where the retreating ice paused rather than
at the furthest extent of the ice.
Terminal Moraine
The terminal moraine forms at the snout of the glacier. It marks
the furthest extent of the ice, and forms across the valley floor.
It resembles a large mound of debris, and is usually the feature
that marks the end of unsorted deposits and the start of fluvially
sorted material.
