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3.  Most forests have a separate map for each ranger district. On the map, roads stop abruptly at district boundaries. When a trail crosses from one district to another, it is very easy to get confused or lost. A prime example of this is Moon/Gamble Gulch and Pickle Gulch (See both of these trails in our new Northern Colorado book coming in May.) In the real world, these trails are intertwined. Unfortunately, the Forest Service has a different map for each area. To maintain our sanity, we found it necessary to piece together the two maps like a giant jigsaw puzzle.
4.  The maps are very large and hard to handle. They tear easily and fall apart quickly.
5.  The maps are updated every year. Make sure you have the latest version.
6.  Some of the mapping was done with aerial photography, not actually tracked with GPS on the ground. We found a few roads on the maps overgrown and impassable. One example is F.S. 413.1 in the Moon/Gamble Gulch area. It narrowed to a single-track trail even though the MVUM showed it as a 4WD trail. The south end of F.S. 252 in the Miller Rock area had the same fate (see our new Northern Colorado book).
7.  If and when the Forest Service finishes placing new route markers in the field, the numbers are still not likely to match the MVUM exactly. For example, often on the MVUM the Forest Service puts a decimal point on a primary route, e.g. 413.1. 8.  Newly placed route markers often do not include the decimal fraction and appear simply as 413.
9.  Seasonal trails are highlighted with a wide gray line. A separate chart listing each seasonal trail shows the exact dates each trail is open. If a trail is not highlighted it means the trail is open all year. No chart is used if all seasonal dates are the same. In this case, you have to look very hard at the bottom of the map to find a single line stating this.
10.  Seasonal opening dates are not always adhered to. Sometimes wet weather or trail damage can delay opening, as happened on Kelly Flats in 2010. Often these closures are listed on the respective Forest Service Websites. If you have a long drive to the trail, look online or call ahead to be sure the trail is open.
11.  MVUMs do not show every existing road, just legal forest roads. It is very confusing to encounter roads not shown on the map. County roads are shown with a light gray line, making them appear less important, when in fact they are usually major roads.
12.  Laws for county roads are usually enforced by the local sheriff and not forest rangers. Typically, unlicensed vehicles are not allowed on county roads, but in some cases, enforcement is minimal and violations are common. Don’t assume since others are riding on a particular road that it is legal.
13.  Some very famous 4-wheel-drive trails (like Pearl Pass near Crested Butte) are county roads, not forest roads. Learn to recognize county roads when reading a MVUM, since different laws and closure dates may apply.
Some forest roads, like Gillespie Gulch in the Boulder Ranger District, are shown as open on the MVUM. The Forest Service doesn’t mention that gates on private property block entrance to the trail at both ends. Apparently, you are allowed to drive Gillespie Gulch if you drop your vehicle in by helicopter.
14.  Long before a MVUM is published, the Forest Service usually maps out other alternatives. Typically these are available online for public review. At some point, the Forest Service may share with you the alternative that is most likely to become final. FunTreks is sometimes forced to use the best alternative to select trails for upcoming books. For example, we’ve been using “Alternative G” for trails in the White River National Forest. This alternative shows that Lime Creek and Wearyman Creek trails will be closed when the new MVUM is published. Therefore, we did not include these trails in our last Colorado book, despite the fact that the trails remain open at the present time.
15.  Printed MVUMs are free at ranger district offices and most can be downloaded from ranger district Websites. A full size map is too large to print on a standard printer, but you can screen capture smaller areas and print individual trails.

Click here to see a listing of all National Forests that have issued MVUMs.

Visit FunTrek to see a complete listing of all Colorado MVUMs by Ranger District.

Visit FunTreks Guidebooks for more 4x4 and SUV Trail Guides

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2" Leveling Kit for 2011 Chevy/GMC 2500HD/3500


Once cast in the USA, Zone Offroad uses resonant frequency technology to guarantee a solid casting. The torsion bar hex is CNC machined with round corners for reduced stress concentration and to provide the most possible strength while yielding 2” of lift with the adjustment bolts in the factory setting.

With the correct torsion bar unloading tool, installation can be performed in one hour. Zone Offroad shock extensions are required with the torsion bar keys unless longer shocks are being installed. This kit will clear 35x12.50 tires mounted on stock wheels with only minor trimming, but if aftermarket wheels with less backspacing are used, then a 33” tire is recommend.

For more information and to order visit zoneoffroad.com.

Quick Specs
Skill Level: 1 of 5
Installation Time: 1 hr
Max Tire size: 35x12.50
Wheels: Stock

Fits: 2011 Chevy/GMC 2500/3500HD 4WD
2” Torsion Bar Keys
Kit # C1204 - Price: $99.95

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Introducing Go Overland!

Go Overland promo

It is our intent to expand our product line to serve our non-Toyota friends also, providing them with the exceptional value and service that we are known for in the Toyota world.

Our sincere desire is to simply make a difference and to live up to our goal of continuing to be a respected supporter of the Overland community.

We thank you for your support over the past seven years, and appreciate the opportunity to continue serving our community.

Phil, Chris, Barb, Jacque and Gerone


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4 Wheel Parts Goes Green with Green Performance Products & Tips for Truck, Jeep, & SUV Enthusiasts

4 Wheel Parts Goes Green

Although most people wouldn’t consider off-roading a “green” activity, 4 Wheel Parts is trying to make it as eco-friendly as possible. The newly launched Going Green section on 4 Wheel Parts provides their customers with more eco-friendly products for their truck, Jeep, or SUV. The Going Green section also includes tips for achieving better fuel economy, reusing products, and getting the best performance from their truck.

4 Wheel Parts Goes Green

Louis Minette, Internet Brand Manager at 4 Wheel Parts says, “Off-road enthusiasts have always had a strong connection with the outdoors, taking some of the roughest terrain that Mother Nature has to offer and conquering it! As the years have passed and legislation has gotten more stringent off-road enthusiasts have had to change with the times to protect their rights to use off-road areas. They realize their impact and work to leave their playgrounds in the same condition as they found it, leaving as little impact as possible. As a friend to off-road enthusiasts, 4 Wheel Parts is taking similar steps to offer our customers the same performance products they crave while reducing their effects on the environment.”

4 Wheel Parts gives their customers useful tips that go beyond the obvious. They don’t just tell you to clean out your car so that you get better gas mileage; they actually go in-depth and provide you with information on how to find your preferred engine operating range (RPM), as well as other useful information.

Even though large pickups and SUVs have taken longer to catch up with the automotive Going Green trend, domestic automakers are making a concerted effort to make these vehicles more earth-friendly and fuel efficient. In concurrence with this movement towards environmental awareness, 4 Wheel Parts is bringing in new performance efficient products to their website and their 4 Wheel Parts stores.

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Switch to Winter Tires for Better Road Traction

Discount Tire Advises Motorists to Switch to Winter Tires for Better Road Traction this Season: Choosing the right tires is important for safe road travel especially when driving in temperatures below 45 degrees

Scottsdale, Arizona (PRWEB) December 22, 2009 -- The fall and winter seasons usually usher in thoughts of chilly air, snowy-white landscapes and the holidays. However, the severe winter weather makes for dangerous driving conditions in many parts of the country. Discount Tire, the world's largest independent tire and wheel retailer, reminds motorists to prepare their vehicles for winter by replacing their all-season tires with winter season tires before the mercury drops below 45 degrees. Winter tires deliver much better traction as well as improve handling and control in cold temperatures making them the best choice for winter driving.

All-season tires are not designed for severe winter weather. Their tread designs are less effective at helping drivers maintain control in winter conditions because they can accumulate material like snow and ice in the treads and they lose their flexibility in temperatures below 45 degrees. These factors can negatively affect tire traction, vehicle handling and braking distance.

According to Discount Tire, it's best to use tires that are specifically designed for the road and weather conditions that motorists will be driving in. Today's winter season tires are much more technologically advanced and safer than "snow" tires of the past. Chemical compounds in the tire help them maintain flexibility in temperatures below 45 degrees and special tread designs channel away materials keeping more rubber connected to the road.

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