Burnmoor Tarn

{{Short description| An upland lake in Cumbria, England}}

{{Use British English|date=August 2020}}

{{Use dmy dates|date=August 2020}}

{{Infobox body of water

| name = Burnmoor Tarn

| image = File:Burnmoor_Lodge_and_Tarn_-_geograph.org.uk_-_623991.jpg

| caption = Overlooking Burnmoor Tarn with Burnmoor Lodge in the foreground.

| alt = Two walkers looking over the lake with mountains in the background

| location = Lake District

| coordinates = {{coord|54.42814|-3.25953|region:GB_type:waterbody|format=dms |display=inline,title}}

| pushpin_map = United Kingdom Lake District#United Kingdom Copeland

| pushpin_map_caption = Location in the Lake District##Location in Copeland Borough

| outflow = Whillan Beck

| catchment = {{convert|6.02|km2|abbr=on}}

| area = {{convert|23.9|ha|abbr=on}}

| max-depth = {{convert|13|m|abbr=on}}

| elevation = {{convert|253|m|abbr=on}}

}}

Burnmoor Tarn, on Eskdale Fell in Cumbria, England, is the largest entirely natural tarns in the Lake District. Its waters flow into Whillan Beck at the tarn's north-eastern corner, which immediately turns south and flows into Eskdale, joining the Esk at Beckfoot.{{Cite web

|title = Burnmoor Tarn

|url = http://www.knowledge.me.uk/areas/lakes/burnmoor_tarn.html|website = www.knowledge.me.uk|accessdate = 2015-04-23

}} Burnmoor Lodge, a former fishing lodge, stands by the southern shore and a mediaeval corpse road runs past the eastern shore where it fords the beck.{{Cite web

|title = UK UWMN Sites|url = http://uwmn.defra.gov.uk/sites/site_11.php

|website = uwmn.defra.gov.uk|accessdate = 2015-04-23

|archive-url=https://web.archive.org/web/20200117002308/http://uwmn.defra.gov.uk/sites/site_11.php

|archive-date=2020-01-17

}}{{Cite web

|title = View: Cumberland LXXIX.NE (includes: Eskdale.) - Ordnance Survey Six-inch England and Wales, 1842-1952

|url = http://maps.nls.uk/view/101093158|website = maps.nls.uk|accessdate = 2015-04-23

}} Eskdale Moor or Boat How lies to the south of the tarn.

The tarn is one of the sites in DEFRA's UK Upland Waters Monitoring Network. It occupies {{convert| 23.9|ha}} and lies at an altitude of {{convert| 253|m}} in a moraine hollow on the uplands between Wastwater and Eskdale. The lake has two distinct basins close to the south-eastern shore and a maximum depth of {{convert| 13|m}}. There are four main inflow streams to the north and north-west. The outflow at the eastern end joins the Hardrigg Beck which drains the slopes of Scafell and, in times of especially high flow, is partly diverted into the lake across a braided delta.