Sun shading (lidar)

Adjust simulated sun direction on the lidar hillshade. Azimuth = compass bearing of the light (0° north, 90° east). Altitude = height above the horizon (low = long shadows).

Historical map overlays

USGS scanned historical topographic maps. Enable an overlay and adjust its opacity. Works in 2D and 3D.

Sun azimuth: 315°   Sun altitude: 45°   Z factor: 1   Lidar opacity: 1
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Richmond Island Shipwreck Treasures

Lost Treasure ME • Cumberland County County
Description
Cumberland County legend of three ships carrying large treasures sunk off Richmond Island near Cape Elizabeth — recoverable hoards in Casco Bay waters.
Historical Notes
Richmond Island sits at the mouth of Portland Harbor in Cumberland County. Compiled guides describe three treasure-laden vessels lost off the island with little salvage attempted. Casco Bay's shipping history makes Richmond Island a focal point for Maine wreck-recovery folklore.
Status / Verification legend — Legendary or approximate

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