Data collected from an ice thickness and stratigraphy network from 1965-66 through 1978-79 permit definition of nearshore ice thickness conditions. The data are

Ice-thickness and stratigraphic data have been collected under a program instituted by the U.S. Lake Survey during winter 1965-66. The program is continuing und

Ice-thickness and stratigraphic data have been collected under a program instituted by the U.S. Lake Survey during winter 1965-66. The program is continuing und

Ice-thickness and stratigraphic data have been collected under a program instituted by the U.S. Lake Survey during winter 1965-66. The program is continuing und