Mount Tammany

{{short description|Mountain in New Jersey, United States}}

{{Use mdy dates|date=January 2025}}

{{Infobox mountain

| name = Mount Tammany

| photo = Mount Tammany.jpg

| photo_caption = Mount Tammany 's south face, November 2008

| elevation_ft = 1527

| elevation_ref =

| prominence =

| map = USA New Jersey Warren County

| map_caption = Location of Mount Tammany in New Jersey

| map_size = 250

| label_position = left

| listing =

| location = Delaware Water Gap, Warren County, New Jersey, U.S.

| range = Kittatinny Mountains

| coordinates = {{coord|40|58|09|N|75|06|41|W|type:mountain_region:US-PA_scale:100000_source:GNIS|format=dms|display=inline,title}}

| range_coordinates =

| coordinates_ref = {{cite gnis |id=881083 |name=Mount Tammany |entrydate=1979-09-08 |accessdate=2009-05-04}}

| topo = USGS Portland

| type =

| age =

| first_ascent =

| easiest_route = Mount Tammany Trail ascending the western slopes from the Dunnfield Creek trailhead (hike)

}}

Mount Tammany is the southernmost peak of the Kittatinny Mountains, in Knowlton Township, Warren County, New Jersey, United States. It is {{Convert|1526|ft|m|0}} tall, and forms the east side of the Delaware Water Gap. Across the Gap is Mount Minsi, on the Pennsylvania side of the river. The mountain is named after the Lenni Lenape chief Tamanend.(Scofield, 38) It lies along the Appalachian Trail in Worthington State Forest. The summit can be hiked by the Mount Tammany Trail ascending the western slopes.{{Cite web|last=Miles|date=2020-07-21|title=Hiking the Mount Tammany Loop – Red Dot/Blue Dot Trail (2021)|url=https://www.journeyingtheglobe.com/the-mount-tammany-hike/|access-date=2021-04-03|website=Journeying The Globe|language=en-GB}} The trailhead is accessible from Interstate 80.

{{wide image|2024-08-21 10 09 52 Panoramic view southwest towards Mount Minsi from just below the summit of Mount Tammany near the border of Knowlton and Hardwick Townships in Warren County, New Jersey.jpg|700px|align-cap=center|View from the overlook near the summit of Mount Tammany|alt=Mount Tammany view}}