Tallest Mountains in the Lower 48
The highest peaks in the contiguous United States—the “Lower 48″—are concentrated in two primary regions: the Sierra Nevada of California and the Sawatch and Sangre de Cristo ranges of the Colorado Rockies. Unlike the state-specific lists where one or two ranges might compete, this list is dominated by Colorado, which is home to the vast majority of the “Fourteeners” (peaks over 14,000 feet) in the country. Mount Whitney in California remains the undisputed king of the lower 48, serving as the highest point in the contiguous U.S., while Washington’s Mount Rainier stands as the most prominent volcanic giant in the Pacific Northwest.
The following table lists the top 25 highest mountain peaks in the lower 48 states, measured in feet.
| Rank | Mountain Peak | State | Mountain Range | Elevation (Feet) |
|---|---|---|---|---|
| 1 | Mount Whitney | California | Sierra Nevada | 14,505 |
| 2 | Mount Elbert | Colorado | Sawatch Range | 14,440 |
| 3 | Mount Massive | Colorado | Sawatch Range | 14,428 |
| 4 | Mount Harvard | Colorado | Sawatch Range (Collegiate) | 14,421 |
| 5 | Mount Rainier | Washington | Cascade Range | 14,417 |
| 6 | Mount Williamson | California | Sierra Nevada | 14,379 |
| 7 | La Plata Peak | Colorado | Sawatch Range | 14,361 |
| 8 | Blanca Peak | Colorado | Sangre de Cristo Range | 14,351 |
| 9 | Uncompahgre Peak | Colorado | San Juan Mountains | 14,321 |
| 10 | Crestone Peak | Colorado | Sangre de Cristo Range | 14,300 |
| 11 | Mount Lincoln | Colorado | Mosquito Range | 14,293 |
| 12 | Castle Peak | Colorado | Elk Mountains | 14,279 |
| 13 | Grays Peak | Colorado | Front Range | 14,278 |
| 14 | Mount Antero | Colorado | Sawatch Range | 14,276 |
| 15 | Torreys Peak | Colorado | Front Range | 14,275 |
| 16 | Mount Blue Sky (Evans) | Colorado | Front Range | 14,271 |
| 17 | Quandary Peak | Colorado | Tenmile Range | 14,265 |
| 18 | Longs Peak | Colorado | Front Range | 14,259 |
| 19 | Mount Wilson | Colorado | San Miguel Mountains | 14,252 |
| 20 | White Mountain Peak | California | White Mountains | 14,252 |
| 21 | North Palisade | California | Sierra Nevada | 14,248 |
| 22 | Mount Princeton | Colorado | Sawatch Range (Collegiate) | 14,204 |
| 23 | Mount Yale | Colorado | Sawatch Range (Collegiate) | 14,200 |
| 24 | Mount Shasta | California | Cascade Range | 14,179 |
| 25 | Maroon Peak | Colorado | Elk Mountains | 14,163 |
Colorado’s Overwhelming Dominance: Out of the top 25 peaks in the lower 48, Colorado claims a massive 19 spots. The state’s unique high-altitude plateau elevates entire mountain systems, meaning its valleys sit at baseline elevations higher than many eastern mountains.
The Distinction of Prominence vs. Elevation: While Colorado owns the raw number of peaks, Mount Rainier (#5) and Mount Whitney (#1) are far more massive in absolute prominence. Rainier is an isolated stratovolcano rising directly from near sea level, making its actual vertical relief far more dramatic to the eye than Colorado’s tightly grouped “14ers”.
The Non-Sierra California Outlier: White Mountain Peak (#20) is a unique exception in California. It doesn’t belong to the Sierra Nevada range; instead, it sits just across the Owens Valley in the desert-locked White Mountains, surviving as an incredibly high, arid peak.
The Standard “14er” Threshold: All 25 of these mountains belong to the prestigious “14er” club—peaks exceeding 14,000 feet. In total, there are 53 official peaks in Colorado alone that meet this standard.
