There are some nice gravel roads around here, a lot of them drop down into river bottoms then climb out. I've ridden these all with my canti-equipped touring bike with 35C tires. I recently picked up a Felt V100 so the descents wouldn't be so exciting!
Here's Yankee Jim Road, dropping down southbound to the North Fork of the American River:
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This is on Finning Mill Road, outside Foresthill:
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Here's a downhill stretch (southbound) on Ponderosa Way:
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And this is the river crossing at the bottom of Ponderosa Way:
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And here's the Mercian after some dirty riding!
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Looking forward to more gravel with my new Felt this season!
George in NoCal