Mallory Cave

MODERATE 342 reviews
#4 of 23 trails in

Mallory Cave is a 2.7 mile moderately trafficked out and back trail located near Boulder, Colorado that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is best used from March until October. Dogs are also able to use this trail but must be kept on leash.

DISTANCE
2.7 miles
ELEVATION GAIN
636 feet
ROUTE TYPE
Out & Back

dogs on leash

kid friendly

birding

hiking

nature trips

rock climbing

trail running

walking

cave

forest

views

wild flowers

wildlife

rocky

scramble

A short walk, a final 100 ft climb and a cave. This hike starts at the NCAR parking lot. Head west to the Mesa trail and cross it by the information sign. There are lots of offshoot trails, be sure to follow the signs to the final 100 ft rock climb. If there is no ice or snow proceed up to the cave. NOTE: The cave is seasonally CLOSED from April 1 to October 1 for roosting bats.

hiking
4 days ago

So much variety in the beauty of the land

hiking
8 days ago

Hiked up here two days ago amazing views saw some whitetail later in the day! The trail was a little muddy and icy which was expected! Great hike!

Really fast and easy trail. Pretty but as with many trails go early before the trail gets crowded.

hiking
1 month ago

Really nice hike with a short climb up to the cave! Lots of trails around that area, so could be a fun place to spend the day and hike around and explore.

hiking
1 month ago

Not the greatest destination. It a hike in the woods is always good!

1 month ago

The joy is in the journey; beautiful forested trail failry steep and rovky. Cave is gated off and last little climb to discover this was a crabwalk scramble with some ice.

hiking
1 month ago

What you would expect from a hike in Boulder. I would go on a sunny day as the view is already not very spectacular when you reach the cave.

It’s a great hike if you want something short, but it’s not very memorable.

hiking
1 month ago

Good hike anti-climactic

hiking
1 month ago

Nice short Hike. Beautiful view of the Foothills!!

2 months ago

This hike and climb at the top are amazing.

hiking
2 months ago

Great trail, pretty cool at the end have to climb up a rock face.

hiking
2 months ago

hiking
3 months ago

Very easy hike but rewarding. Good if you’re short on time

3 months ago

Hiking

hiking
3 months ago

Beautiful and short with a fun scramble at the end! The views of Boulder from the cave are breathtaking.

hiking
3 months ago

Good trail- was hard sometimes to know if you were off of the trail when it become more rocky. The cave is also closed due to the bats. Can't remember when it opens. There is a very steep part where you essentially rock climb to view the cave and the gate in front of it

4 months ago

Loved it

hiking
4 months ago

This was an awesome trail!! However what’s not mentioned is that this is climb to Mallory cave and rocky in areas. Several switch backs. Beautiful, peaceful and a fair amount of foot traffic. Will definitely do again.

4 months ago

Great views along the trail! A must do. The bat cave was still padlocked yesterday, but it looked scary in there anyway! I thought a vampire would appear, lol.

Definitely some scrambling at the end getting to the cave as well as a narrow area you have to squeeze your body through. Great area to sit and see a birds eye view of Boulder!

4 months ago

Nice view, good balance of woods and open scenery. It has Streep parts but is definitely doable within 2.5 hours. I clocked 3.9 miles, 36 floors round trip.

Load More