Tremper is a sprawling mountain at the south end of a range of low-elevation peaks between Warners Creek and Silver Hollow on the north, Stony Clove Creek on the west, Esopus Creek on the southwest and the Beaver Kill on the southeast.
The latter three are closely paralleled by state highways 214, 28 and 212.
Its summit dominates the view from westbound Route 28 at the small hamlet of Mount Tremper.

The mountain's lower slopes are gentle, becoming steep around 2,200 feet (670 m) and then leveling off again at the summit ridge.
Unnamed tributaries of the surrounding creeks run down narrow valleys on the mountain's slopes.
The summit ridge continues northeast to an unnamed summit and then Carl Mountain, both higher than Tremper at 2,820 feet (860 m) and 2,880 feet (880 m) respectively.

Most of the mountain is within the Town of Shandaken, whose largest population center, the hamlet of Phoenicia, is at the southwest foot of the mountain.
Another smaller settlement named after the mountain is to its south.
A small portion of the mountain's lowest eastern slopes is within Woodstock.
Most of the land on the mountain is part of the Phoenicia Wild Forest management unit of New York's Forest Preserve, part of the Catskill Park.
The rest, including most of the slower slopes, is privately owned.
The public land is managed by the state Department of Environmental Conservation (DEC).
Tremper is a sprawling mountain at the south end of a range of low-elevation peaks between Warners Creek and Silver Hollow on the north, Stony Clove Creek on the west, Esopus Creek on the southwest and the Beaver Kill on the southeast. The latter three are closely paralleled by state highways 214, 28 and 212. Its summit dominates the view from westbound Route 28 at the small hamlet of Mount Tremper.
The mountain's lower slopes are gentle, becoming steep around 2,200 feet (670 m) and then leveling off again at the summit ridge. Unnamed tributaries of the surrounding creeks run down narrow valleys on the mountain's slopes. The summit ridge continues northeast to an unnamed summit and then Carl Mountain, both higher than Tremper at 2,820 feet (860 m) and 2,880 feet (880 m) respectively.
Most of the mountain is within the Town of Shandaken, whose largest population center, the hamlet of Phoenicia, is at the southwest foot of the mountain. Another smaller settlement named after the mountain is to its south. A small portion of the mountain's lowest eastern slopes is within Woodstock. Most of the land on the mountain is part of the Phoenicia Wild Forest management unit of New York's Forest Preserve, part of the Catskill Park. The rest, including most of the slower slopes, is privately owned. The public land is managed by the state Department of Environmental Conservation (DEC).
Mount Tremper