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This is likely a great time to hike this trail!  Check out "Prefered" months below, keep in mind this is an estimate.

Grass Canyon Loop, AZ

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12 2 0
Guide 2 Triplogs  0 Topics
Rated  Favorite Wish List AZ > Southwest > Ajo
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HAZ reminds you to respect the ruins. Please read the Archaeological Resources Protection Act of 1979 & Ruins Etiquette
Statistics
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Difficulty 4 of 5
Route Finding 3 of 5
Distance Lasso-Loop 7.5 miles
Trailhead Elevation 2,291 feet
Elevation Gain 1,255 feet
Avg Time One Way 3-7 hours
Kokopelli Seeds 11.68
Interest Off Trail Hiking, Ruins, Historic, Seasonal Waterfall, Seasonal Creek & Peak
Backpack Possible - Not Popular
Dogs not allowed
feature photo
Photos Viewed All Mine Following
7  2017-02-23 caquark
5  2006-01-22 desertlavender
Historical Weather
Trailhead Forecast
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Preferred   Jan, Dec, Feb, Mar → 9 AM
Seasons   Autumn to Winter
Sun  7:23am - 5:28pm
Route
 
0 Alternative
 
Water
Nearby Area Water
Alamo Canyon - Organ Pipe NM
Alamo Canyon - Organ Pipe NM
0.1 mi away
2.6 mi
135 ft
Arch Canyon - Organ Pipe NM
Arch Canyon - Organ Pipe NM
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2.6 mi
1,210 ft
Bull Pasture - Estes Canyon Loop
Bull Pasture - Estes Canyon Loop
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3.1 mi
1,001 ft
Mount Ajo Peak
Mount Ajo Peak
4.0 mi away
9.0 mi
2,800 ft
Puerto Blanco Mtns Pinkley Pk 3145 - OPNM
8.6 mi away
4.0 mi
1,220 ft
Visitor Center Trail - Organ Pipe NM
9.2 mi away
0.2 mi
Ajo Mountain Drive - 21 mile bike loop - ORPI
Ajo Mountain Drive - 21 mile bike loop - ORPI
9.2 mi away
21.0 mi
1,250 ft
Puerto Blanco Loop - Organ Pipe NM
9.2 mi away
Dripping Springs - Organ Pipe Cactus NM
Dripping Springs - Organ Pipe Cactus NM
10.1 mi away
4.0 mi
350 ft
Twin Peaks Campground Perimeter Trail - ORPI
Twin Peaks Campground Perimeter Trail - ORPI
10.2 mi away
1.2 mi
75 ft
[ View More! ]
primarily loose rock
by caquark

Likely In-Season!
This "trail" is an approximately 7.5 mile, rugged, undesignated route that will take most of the day. Do this loop in a clockwise direction!

Walk back out along the road before beginning a northward approach to the Grass Canyon entrance rather than scrambling along the foothills of the range. The route is primarily on loose rock through dense vegetation and traverses numerous washes. You should be aiming for a large pillar of stone. Head around the base of this pillar, bypassing the first canyon on the right to a second one, that is the true entrance to Grass Canyon. From its entrance, the saddle at the ridgeline is apparent.


Begin your ascent staying along the southern hillside with the aim of arriving at the saddle at the top of the canyon. Being on the south side and higher on the slope helps you avoid the big ravines near the wash that run down the center. The route is a slow, steep climb with loose rock as footing and lots of dense scrub. You may find animal trails leading in the right direction to follow, but most of them fade after a short way. You can continue to find these trails as you make your way up the canyon or devise your own route.

Once you reach the saddle you are about 4 miles into the hike with views both to the east and west. Cross over the saddle, staying to the right and along the slope, until you can climb down and reach the wash that descends to the east. You will come to some junipers and the wash will begin to bottleneck. Continue following the wash east until it joins the North Fork, that heads to the south, turn right and follow it. You will continue to fight brush and bramble as you find a way through the canyon, scrambling over and down the many sills, at times swinging through or hopping off boulders. Your footing will be a mix of slab rock, boulders of varying size, loose rock, and sand. It becomes an easier walk towards the end of the canyon where it emerges into Alamo Canyon (itself heading to the west).

Soon after emerging into Alamo Canyon there will be an old corral on your left. You will have completed about another 2.5 miles of your hike. Once you come across the corral, climb the trail (found on the south side of the wash) that leads to it. You will rejoice that your feet are on hardpack and the remaining mile of your hike is well defined. Follow this trail as it re-crosses the wash a little further downstream and leads you to the Alamo Campground. Along the trail, you'll pass an old cowboy line camp building and eventually see the outhouse building (at the Alamo Campground) on your right. Follow a branch from the trail up a short, steep slope to this building. You are back at the trailhead.

Sources: info from Visitor's Center, Molvar's "Hiking Arizona's Cactus Country", and personal experience

caquark

    One-Way Notice
    This hike is listed as One-Way.

    When hiking several trails on a single "hike", log it with a generic name that describes the hike. Then link the trails traveled, check out the example.
    WARNING! Hiking and outdoor related sports can be dangerous. Be responsible and prepare for the trip. Study the area you are entering and plan accordingly. Dress for the current and unexpected weather changes. Take plenty of water. Never go alone. Make an itinerary with your plan(s), route(s), destination(s) and expected return time. Give your itinerary to trusted family and/or friends.

    Permit $$
    National Monument Fee $10-25 per 7 Days

    Organ Pipe Cactus National Monument
    $8 fee per car for a 7 day pass. Backpacking and backcountry camping is not allowed at this time due to an increase in illegal border activity.. Camping is available in the two designated campgrounds only.


    Directions
    Map Drive
    or
    Road
    FR / Dirt Road / Gravel - Car Okay

    To hike
    From U.S. Hwy 85, at mile marker 65.3, turn east onto Alamo Canyon Road and drive to the end. Trailhead parking can be found at Alamo Canyon Campground.
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