|Elevation: 369m (1200ft)
||Depth: 6.5ft Approx
||Location: East of Grasmere
||Walk Info: 1 Mile and 300m of ascent
|Originally Alcock Tarn was named Butter Crags Tarn before it was enlarged by a small dam. It is located high above the village of Grasmere on a natural shelf and is an enjoyable tarn to walk to.