Stocks that climb to 10 times their original price are a rare breed -- but they're not impossible to find. Especially when you have Fools for friends.

The market's best stocks include companies that have risen hundreds of times in value over the past decade. These aren't penny stocks; they're viable companies with sound business prospects, achieving phenomenal returns every year. Finding just one or two of these monstrously successful firms can help you establish a winning portfolio.

Stalking the monster
To find tomorrow's monster stocks, we'll enlist the 83,000-plus investors at Motley Fool CAPS. We've compiled a list of the most successful CAPS players, dubbed All-Stars, whose picks have doubled, tripled, or even quadrupled in price. Then we've plucked out some of their recent picks for stocks they find equally promising.

Player

CAPS Rating

Monster Stock

CAPS Score

Recent Stock Pick

CAPS Rating (Out of  5) 

forbes10

99.83

Mechel (MTL)

393.78

Genesee & Wyoming (NYSE: GWR)

*****

adoratium

99.67

Baidu.com

208.92

Lockheed Martin (NYSE: LMT)

****

knudfool

98.40

Terra Nitrogen (NYSE: TNH)

453.55

Mannatech (Nasdaq: MTEX)

**

stockgripes

97.97

Dendreon

457.73

Crocs (Nasdaq: CROX)

**

attila1955

98.52

First Solar

610.39

Qualcomm (Nasdaq: QCOM)

***

Of course, this is not a list of stocks to buy -- or, for those monster stocks that our CAPS All-Stars have already found, sell. Just consider them starting points for your own research.

Working on the railroad
When Warren Buffett decides to buy into an industry, you can be sure other investors will want to pile in. Yet where the Oracle of Omaha has invested heavily in Burlington Northern Santa Fe (NYSE: BNI), others might look to CSX or Union Pacific. What probably gets overlooked in the stampede are small, short-line railroads such as Genesee & Wyoming.

With railroads in the U.S., Canada, Australia, and, until recently, Mexico, Genesee & Wyoming has been a generally overlooked engine of growth. That was one of the reasons behind its getting selected by Motley Fool Hidden Gems, but a prolonged drought in Australia, the (now) discontinued operation in Mexico, and softness in the pulp and paper market have been a drag on results for the past year. It generates approximately 20% of its revenue from the paper industry, and, although pricing has improved, the drag has served to mask how well the underlying tracks have been laid. The latest quarterly results had lower volumes but increased pricing, so when an economic upturn occurs, Genesee & Wyoming will be chugging right along.

Not quite 800 CAPS investors have weighed in on the railroad, and only 10 have crossed the tracks to mark it as an underperform. CAPS investor bkwfool acknowledged last fall that Buffett-mania has helped drive interest in railroad stocks, and he's not one to argue with the Oracle:

This is a long-term pick on the advantage that railroads will have relative to trucking as energy prices rise. If Warren Buffett and Charlie Munger like RR's right now, well, who am I to argue? But I think this one might be red on my CAPS page for a while.

CAPS player chitownjester agrees that as long as energy prices keep pinching overland transportation modes, railroads ought to be able to outperform. With an aggressive growth policy and the worst in Australia and Mexico behind it, Genesee & Wyoming stands to reap the benefits:

Railroads become more competitive as cost of fuel goes up, because fuel as % of total [operating expenses is] lower for rail ... [Genesee & Wyoming], like most rail operators, has locked in customers with few alternative means to ship product. Aggressive growth fueled by acquisition.

A chance for scary growth
Now's the opportunity for you to weigh in on Genesee & Wyoming or any of the other stocks these All-Stars see as achieving monster growth. Agree with their views? Tell us on CAPS. If you don't agree, let us know that, too! If you've got an opinion, then this is the place where your voice counts. Let's hear whether you think these are tomorrow's monster stocks that have been uncovered today.

Genesee & Wyoming is a Hidden Gems recommendation. Baidu.com is a choice at Rule Breakers. There are no scary monsters under the bed of the 30-day free trial subscriptions we are offering you.

Fool contributor Rich Duprey does not have a financial position in any of the stocks mentioned in this article. You can see his holdings here. The Motley Fool has a disclosure policy.