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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Rumford — Oxford County

Gold Mining Site MA • Oxford County County
Description
Along the Black Mountain Brook there were some productive placers worked in the early years.
Historical Notes
Source: Tom Ashworth's Prospectors Cache (tomashworth.com / Tom Ashworth). Author: Tom Ashworth. Original page: oxford_ma.shtml. Area: Rumford. Map coordinates refined from text (landmark: "Brook, Oxford County, Massachusetts, USA"). Still approximate — verify on the ground. Along the Black Mountain Brook there were some productive placers worked in the early years.
Status / Verification historical_site — Legendary or approximate

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