• Caballo Mountain 3199 m
• Cal Peak 2283 m
• Caliente Mountain 1556 m
• California Peak 4221 m
• Camels Hump 1245 m
• Cameron Cone 3263 m
• Canadian Bacon (mountain) 2012 m
• Canadian Border Peak 2291 m
• Cannon Mountain 2729 m
• Cannon Mountain (New Hampshire) 1250 m
• Canyon Mountain 2438 m
• Cape Horn 2321 m
• Caper Peak 2520 m
• Capitol Peak 4307 m
• Carbonate Mountain (Colorado) 4237 m
• Cardinal Peak 2618 m
• Caribou Mountain (Franklin County, Maine) 1112 m
• Carlisle 1620 m
• Carne Mtn 2160 m
• Carr Peak 2815 m
• Carrizozo 1731 m
• Carson Peak 3325 m
• Carter Dome 1473 m
• Cascade 1249 m
• Cascade Peak 2264 m
• Cashmere Peak 2591 m
• Casper Mountain 2478 m
• Castle Mountain (Hampshire County, West Virginia) 1260 m
• Castle Peak 4348 m
• Castle Peak 3105 m
• Castle Peak (California) 2776 m
• Castle Peak (Idaho) 3601 m
• Castleton Tower 2029 m
• Cat Hills volcanic field 1750 m
• Cathedral Peak 4250 m
• Cathedral Peak (California) 3326 m
• Cathedral Peak (Montana) 2756 m
• Cathey Peak 2940 m
• Cerro Alto Mountain 2043 m
• Cerro Grande (New Mexico) 3111 m
• Cerro Noroeste 2524 m
• Cerro Pedernal 3006 m
• Chagulak 1142 m
• Chair Peak 1901 m
• Challenger Point 4292 m
• Chaos Crags 2592 m
• Charlotte Dome 3261 m
• Chestnut Mountain (Caldwell County, North Carolina) 1010 m
• Chetco Peak 1424 m
• Cheyenne Mountain 2915 m
• Chicoma Mountain 3524 m
• Chief Mountain 2767 m
• Chimney Rock 2171 m
• Chimney Tops 1463 m
• China Cap 2638 m
• China Hat 2003 m
• Chinese Peak 2653 m
• Chiricahua Peak 2974 m
• Chopaka Mountain 2403 m
• Chrysolite 3908 m
• Church Butte 2687 m
• Cima Dome & Volcanic Field National Natural Landmark 1509 m
• Cinder Cone and the Fantastic Lava Beds 2105 m
• Cinnamon Butte 1956 m
• Cirque Peak 3932 m
• Citadel Mountain 2752 m
• Clagett Butte 2451 m
• Clark Mountain (California) 2418 m
• Clark Peak (Medicine Bow Mountains) 3948 m
• Clear Lake 1439 m
• Clear Lake Volcanic Field 1440 m
• Cleaver Peak 3370 m
• Clements Mountain 2670 m
• Cleveland 1730 m
• Cliff Mountain (New York) 1202 m
• Clinch Mountain 1429 m
• Clingman's Dome 2025 m
• Cloud Peak 4013 m
• Cloudcroft Peaks 2655 m
• Clouds Rest 3025 m
• Cloudveil Dome 3666 m
• Clyde Minaret 3743 m
• Clyde Spires 4044 m
• Cobb Mountain 1439 m
• Cobblestone Mountain (California) 2042 m
• Coburn Mountain (Maine) 1133 m
• Cockscomb 3373 m
• Colchuck Peak 2653 m
• Cold Bay Volcano 1920 m
• Cold Mountain (North Carolina) 1838 m
• Colden 1437 m
• Colonel Bob Mountain 1369 m
• Colonial Peak 2369 m
• Colter Peak 3243 m
• Columbia Peak 2186 m
• Columbia Point 4261 m
• Concord Tower 2304 m
• Conejos Peak 4015 m
• Conger Mountain 2482 m
• Cook Peak 2973 m
• Coosa Bald 1304 m
• Cornell Mountain 1180 m
• Corral Ridge 2490 m
• Corteo Peak 2463 m
• Coso Volcanic Field 2400 m
• Couchsachraga Peak 1156 m
• Cougar Peak 2406 m
• Courtney Peak 2558 m
• Cowhorn Mountain 2336 m
• Cowlitz Chimneys 2318 m
• Cowrock Mountain 1174 m
• Cracker (benchmark) 2997 m
• Craggy Pinnacle 1796 m
• Crane Mountain 2577 m
• Crater Flat 1128 m
• Crater Lake 2487 m
• Crater Mountain 2477 m
• Crater Peak (Colorado) 3454 m
• Craters Of The Moon 2005 m
• Crazy Peak 3418 m
• Crescent Mountain 2382 m
• Crested Butte 3707 m
• Crestone Needle 4327 m
• Crestone Peak 4357 m
• Crocker Mountain (Maine) 1289 m
• Crossing Knob 1018 m
• Crowfeet Mountain 2717 m
• Crystal Peak (Tenmile Range) 4222 m
• Cucamonga Peak 2700 m
• Culebra Peak 4282 m
• Cultus Mountain 2058 m
• Cummings Mountain (California) 2365 m
• Curecanti Needle 2359 m
• Curly Bear Mountain 2469 m
• Currant Mountain 3511 m
• Cutthroat Peak 2454 m
• Cuyamaca Peak 1985 m