The Harrison Greenway is a useful north–south connection between the Pantano River Park Trail and Julian Wash Greenway (via a brief on-road route). All three trails are integral components of a larger trail network called The Chuck Huckelberry Loop, spanning more than 136 miles throughout Tucson and Pima County.
For the northern third of its route, the Harrison Greenway closely parallels Harrison Road. At the road's terminus at Irvington Road, the trail continues south on its own, traveling arrow-straight through desert (and Fantasy Island Mountain Bike Trails Park) to Valencia Road. From here, the trail passes Mesquite Elementary School before turning west to reach its end at the intersection of Nexus Road and Rita Road.
Parking for the Harrison Greenway is available at Fantasy Island Mountain Bike Trails Park at the intersection of Harrison Road and Irvington Road in Tucson.
This trail is really nice. It is well maintained, with the surface being smooth just about the whole way. I especially loved that it does not run along side a road for the most part. Even though there were a lot of cyclists using the trail, it did not feel crowded. Everyone was courteous about passing or being passed.
This section of the Tucson loop has beautiful mountain views to the north and east. It cuts right through the desert with lots of large cactus and no cars or other roads around. It is like a bike freeway. It is part of the entire Tucson loop so you can keep going around Tucson for about 100 miles.
I love this part of the Loop bike system on the east side of Tucson. It's desolate in a wonderful way and makes for a great ride. A little bit hilly and it connects up to the Julian Wash Greenway if you're westbound. On the eastbound route, you connect to the Rillito River Path. You can stop for a water/bathroom break at Thomas Jay Park where Julian Wash Greenway starts. There are only a couple of areas where you have to cross the road, but really there is minimal contact with car traffic.
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