Delaware County topographic maps

Grand Lake has a surface area of 41,779 acres (169.07 km2) of water, a storage volume of 1,515,416 acre-feet, and 1,366 miles (2,198 km) of shoreline. Unlike other lakes in Oklahoma, Grand Lake is a deep and mostly rocky lake. The average depth for Grand Lake is 36.3 feet. Its mean elevation is 745 ft (227 m)…

Average elevation: 257 m

Average elevation: 253 m

Average elevation: 263 m

Average elevation: 279 m

Average elevation: 342 m

Average elevation: 312 m

Average elevation: 339 m

Average elevation: 321 m

Average elevation: 338 m

Average elevation: 249 m

Average elevation: 249 m

Average elevation: 244 m

Average elevation: 264 m

Average elevation: 341 m

Average elevation: 347 m

Average elevation: 306 m