Nome has some fabulous mountain biking opportunities. In addition to four wheeler trails that are a little more challenging, the standard roads out of Nome mostly look as pictured below. There are about 300 miles that go out into the country. It's perfect gravel riding with a good chance of seeing wildlife and getting into remote spots.
Yesterday's ride was a standard loop I go on of about 20 miles and maybe 2,000 ft of climbing. It is a great loop with little traffic, good scenery without having to commit more than 2 hours. I usually add in a short hike up to Anvil (~900 ft) since it is on the way home. No dogs and no big animal charges. A good ride.