Name: Longtan lake topographic map, elevation, terrain.
Location: Longtan lake, 環湖道路, 龍潭村, Jiaoxi Township, Yilan County, Taiwan Province, 26244, ROC (24.79262 121.73781 24.79866 121.74282)
Average elevation: 259 ft
Minimum elevation: 3 ft
Maximum elevation: 1,001 ft