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Volume XXV - 1994
Hiking in a Montane Mire
By Jean Danielson and Steve Mark
Sphagnum Bog is one of many charming areas in Crater Lake National
Park. It is four miles west of the lake, but an easy hike from the
Rogue River National Forest. The trail to Sphagnum Bog can be reached by
taking state highway 230 and turning east at the sign for National Creek
Falls. Use forest road no. 6536 to go east, then spur road 660 to find
the trailhead. It is only about one quarter mile to the park boundary
once you are on the trail.
On the way into Sphagnum Bog, you may be lucky enough to see a
number of rare and interesting plants. One with a small purple-blue
flower is Mount Mazama collomia, Collomia mazama. If you see
one, note its location and report your find on the observation cards
available at park visitor centers. Remember, as with all flowers in the
park, do not pick or allow anything to harm it.
In roughly a mile and a half, the access trail intersects with the
so-called Bald Crater Loop. Go south to Crater Springs and cross the
creek once to reach the bog. The total distance to the bog is 2 1/4
miles. Upon finding the wetland area, a deep sense of the primordial can
be felt. Amid the bog's hollows and mounds of vegetation, you should
find that sphagnum becomes more obvious. This genus is represented by
two species in the bog, S. squarrosum and S. subsecundum
Sphagnum has large open cells which make it seem like a sponge to the
touch. This is because most members of the genus have the ability to
hold 20 or more times their dry weight in water.
Sphagnum is a moss which grows only in water and has the ability to
acidify its surroundings. Although it grows continually upward, Sphagnum
is balanced by decay at the bottom of the plant. Its partial
decomposition in water forms peat. Varying in consistency from turf to a
slime, peat further decomposes to a dark brown or black and can impart a
tea color
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