By JOHN DICKERSONWASHINGTON (AP) Some hiking trips may not be worth the trouble.

In the foothills of the Rockies, some hikes can be worth it.

They can be good for the environment and the economy.

The mountain ranges that make up the Sierra Nevada mountains are considered among the most productive in the country, and their scenic beauty and high quality of life are often cited as a reason for their popularity.

The Sierra Nevada has some of the highest elevation gainers in the world.

But the region has a population that’s only about 15,000 people.

That’s a tiny fraction of the more than 200 million people living in the U.S.

At the height of the high-altitude recreation boom, the Sierra is a natural gateway for tourists to the U-M system, the University of Michigan’s Ann Arbor campus and a major international trade hub.

A century ago, it was a key gateway to the Pacific Northwest, the Pacific Coast Trail and the Trans-Pacific Partnership trade pact.

Today, it’s a major source of visitors, with more than 1 million people visiting the area annually.

Tourism is expected to top $12 billion for the year, more than double the $5.5 billion from 2016.

That figure is forecast to increase as the ski season approaches and as more and more people move to the mountains for the winter months.

The state parks system is among the biggest.

More than 50,000 visitors visit the parks each year, and the state’s recreational trails and parks are a popular destination for many tourists.

The parks system has about $8 billion in revenue.

“We’re one of the few places in the state that are really producing the kind of tourism that it deserves,” said Steve McCollum, the director of the parks department in Ann Arbor.

“I would be more confident if we had a million dollars to spend on the trails and the trails department,” McCollom said.

“And if we could invest $50 million a year to get more people in, then it would be worth every penny.”

The Sierra has become a popular travel destination for the past decade, with many hiking, biking and horseback riding trips taking place there.

But it’s not all sunshine and water, and some of its scenic beauty isn’t for everyone.

The Sierra is not only a popular place for people to visit, but it’s also a major contributor to the state economy.

More people are going to the Sierra each year than anywhere else in the United States, according to the National Science Foundation.

That can be a good thing for the state.

“A lot of the people that come to the valley to see the mountains, they’re not going to be happy there if it’s cold or they can’t find a parking spot,” McCollsum said.

“It’s a place to see nature, and that’s what it’s good for.”

In addition to hiking, the high Sierra also offers hiking and biking trails.

The National Park Service offers several mountain bike trails in the area, and people can rent bikes from a range of companies, including Rent a Bike and Kayak Adventures.

But some people don’t enjoy hiking.

They prefer to ride horses, and most of those trips involve riding the roads through the mountains.

“They can do that if they want to, but the thing that bothers me is that if you’re not using the trails, then you’re going to get hurt,” McColsum said of horseback riders.

“You can’t have your horse in a buggy and have it in the front seat and go riding.

That will get you hurt.”

But some of those same trails can be accessed by bicycle, and a new bike-sharing program in Ann-Marie has attracted a wide range of people, including families.

“What you can get is the same thing you get on the mountain: bikes, cars and a car,” said Amy Zaremba, the CEO of Rent a Ride.

Zarembo, who owns the rental business Zarempa Adventures, said her company has a wide variety of bikes for rent, from full-size bikes to two-wheelers and SUVs.

She said she has seen a drop in ridership from a few years ago.

“When we first opened, there were people coming in, coming in a few days a week, just riding their bikes to go to the trails,” she said.

That doesn’t mean there’s not some enjoyment for those who like to ride a bike.

“If you want to get out on the trail and have fun, you can have fun with a bike, you just need to bring it along,” Zaremberga said.

For people who don’t like to hike, the trails can also be a popular way to get away.

“There’s a lot of places in this state, not just in Annapolis, but just around the state, where you can ride a motorcycle to get home from work,” McCellum said, pointing to places like