Ape Caves
Ape Caves
Ape Caves is a fun, short,
but difficult hike. Ape Caves
is a lava tube. The hike is
only about 2.5 miles long but
is difficult and dangerous.
You will have to hike up and
down large piles of rocks. At
one point there is about an 8
foot wall to climb. It is always
cool in the cave. Notice the
clothes I am wearing. I did
this hike in the middle of
summer. It is also dark. Bring
a good flashlight, a back up,
and extra batteries. I also
suggest either bringing or
renting a lantern. I rented a
lantern and it was worth it.
You see much better than
with just a flash light.

This hike is
dangerous. Please
use caution.

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Me at Ape Caves
Length: 2.5
Difficulty: challenging
Pass: NW Forest Pass
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Retail Locations
This cave is actually a lava
tube, and is one of the
longest such in the world at a
length of 12,810 feet. It is
believed that the lava tube
was formed about 2000 years
Directions: Part of the Mt St Helens
National Volcanic Monument. I-5 exit
21 (Woodland). Drive east on Hwy
503/USFS Rd 90 for 35.5 miles. Turn
left (north) onto USFS Rd 83, drive two
miles, then turn left (west) onto USFS
Rd 8303. Drive one-quarter mile to the
Trail of Two Forests, then continue
another mile on USFS Rd 8303 to the
parking lot of lower entrance to Ape