Typical window
Mid-March to early April (spring) and late October to November (fall)
Nearest RV base
Mound City / Big Lake State Park, Missouri
Hundreds of thousands of snow geese blanket the refuge, rising together in great white clouds.
Plan it honestly
Spring migration is usually mid‑March; call the refuge for daily counts before you go.
Check current conditions with USFWS — Loess Bluffs National Wildlife Refuge .