Over the past 40 years the forest service has expanded its' system of logging roads to a current total of about a. 3500 miles b. 35 miles c. 350 miles d. 350,000 miles

The correct answer is D. 350,000 miles.

Description: According to US Forest Service statistics, there are five components of the extensive and diverse Forest Services roads system:

Approximately 22 percent of all Forest Service roads serve passenger car use.  Over 55 percent of all Forest Service roads are maintained for high-clearance vehicle use.  Around 23 percent of all Forest Service roads are closed to highway use by the public. Closed roads may be used for recreation uses, and for forest administration and protection.  Right now, Forest Service has identified at least 60,000 miles of unclassified roads including temporary roads and roads that were never planned, built, or maintained to safety, service, and environmental standards. Probably there are substantially more miles of unclassified roads.  More than 7,000 bridges on Forest Service roads exist; 5,200 are on the roads serving passenger car use.

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