A website for USA with detailed information somewhat like c2c for Europe is MountainProject.org California has a detailed overview page here on c2c. There are some French-language route descriptions and reports. New York state has an the Gunks on c2c.

United States

Camptocamp

Red sandstone, with some interesting climbing and scrambling routes, and a tiny summit boulder. <h2>Details</h2> Not as high as the more northerly peaks of the Calico Hills. The traverse of its summit ridge from Stairmaster Pass to Frostie Shack Pass is the crux stage of the &#8220;grand traverse&#8221; south-to-north of the Calico Hills ridges. More info + routes + comments + photos &#8230; <ul> <li>see Red Book Point on MountainProject.com</li> </ul>