Quiz: What is the primary source of water for Lake Tahoe? January 10, 2025 by Lake Core Editors Desk What is the primary source of water for Lake Tahoe? Discover more about Lake Tahoe at our Lake Tahoe Category. A) Snowmelt from the Sierra Nevada Mountains B) Rainwater runoff from nearby valleys C) Underground springs from the lakebed D) Glacial melt from the Arctic Submit Answer See also Quiz: Which lake is the largest in Michigan by surface area?