Home States  Colorado  Connecticut  Maine  Massachusetts  New Hampshire  New York  Rhode Island  Utah  Vermont  View All Lists  NE 4,000 Footers  NE 100 Highest  NH 4,000 Footers  NH 100 Highest  NH 52 With A View  NH Belknap Range  NH Ossipee 10 Links Trail Conditions Trip Log  Sunrises  Sunsets About Whaleback Mountain Lincoln, NH Whaleback Mountain as seen from near the summit of Loon Mountain's North Peak Summary Located south of Mt. Flume along the abandoned lower Osseo Trail, Whaleback Mountain features multiple directional points near its wooded summit. Summit Elevation 3,586 feet Summit Facilities None. Trip Reports: Click on the date for photos, timestamps, and maps. Date of Hike Trail(s) Length Steepness Vertical June 29, 2014 Old Osseo Trail, more Moderate Difficult 2,726' More Information Copyright 2002-2021, All Rights Reserved. www.FranklinSites.com