Green Mountain Open Space

MODERATE 209 reviews

Green Mountain Open Space is a 20.8 mile heavily trafficked loop trail located near Morrison, Colorado that features beautiful wild flowers and is rated as moderate. The trail offers a number of activity options and is best used from May until October. Dogs and horses are also able to use this trail.

DISTANCE
20.8 miles
ELEVATION GAIN
3100 feet
ROUTE TYPE
Loop

dog friendly

birding

hiking

mountain biking

nature trips

trail running

walking

horseback riding

forest

views

wild flowers

wildlife

muddy

snow

Fun, intermediate mountain bike ride about 20 minutes west of Denver, near Lakewood, Colorado. This trail is fairly easy with a good climb and intermediate descents. Also popular with hikers. Please share the trails respectfully. Not all of the trails and junctions are well marked, so be careful not to get lost and bring the map with you if you can.

1 day ago

hiking
3 days ago

hiking
8 days ago

This is a very nice trail extremely close to downtown Denver. My girlfriend and I hiked the largest loop possible starting from the lot west of C470. We started off going up the step incline to the left by the large rock outcropping... this may have been out first mistake. This path is nice and wide but a straight incline for well over a mile. We really liked all the different trail options and for being just an open space with no trees it was actually very pretty. Our only complaints about the trail is the different trail options aren't defined very well, gender the reason we took the largest loop, evening ending up on Alameda at ones point. The other HUGE complaint is this trail is an excellent mountain biking trail. We must have yielded to no less than 150 bikes in our 2:45 of hiking, and in some sections they are flying well over 20/30 mph.

mountain biking
10 days ago

hiking
15 days ago

Beautiful hike and has an amazing view of denver when you make it up! Wonderful for our dog as well

hiking
17 days ago

24 days ago

hiking
25 days ago

hiking
1 month ago

hiking
1 month ago

hiking
1 month ago

hiking
1 month ago

hiking
2 months ago

So pretty! You can see everything... downtown, the Flatirons, the mountains.

birding
2 months ago

hiking
2 months ago

hiking
2 months ago

mountain biking
2 months ago

hiking
2 months ago

From the 470 side it's a good short vertical gain of about 700 feet in 1.1 miles great for repeats especially time is limited.

hiking
3 months ago

hiking
3 months ago

Very boring hike. There are some great views here and there, but the rest if very boring. Zero shade - I mean zero. Not even at the trail heads. No picnic tables, no water sources and poorly marked trails. A lot of mountain bikers seem to be enjoying the terrain - not too steep and some great single track. I would not recommend this for a hike. I needed to get a 20 miler in with my son for his Hiking Merit Badge and the 20.8 mile loop looked great online - but you have to watch the route closely on the app to make sure you don't miss the turns due to the poor marking.