Lake Martha (North) is located in the Seven Lakes area north of the Tulalip reservation. The lake is 62.9 acres in size and one of the deepest lakes in the county at maximum depth of 70 feet and an average depth of 33 feet. Lake Martha's immediate watershed, or the land area that drains into the lake, is large at 967.8 acres and is primarily undeveloped.
|Health Report Card
|In Depth Health Report