Blue Marble Earth

Exploring the "why" of this fantastic planet!

January 14 2023 · Edited Apr 9, 2026

Serpentinite stories – Beverly Creek to Ingalls Lake

So I dropped a lot of hints in my post about my Lake Ingalls hiking adventure about how I made incorrect assumptions about the rock. Every geologist is biased by the rocks they studied first. For me,

by Blue Marble Earth

May 25 2023 · Edited Apr 9, 2026

Dam creates lakes…both upstream and downstream.

My girlfriend and I put up with the crowds to spend a spring-like January afternoon hiking up Rattlesnake Ledge, one of the Seattle area’s best-known day hikes. The trail was a delightful conga

by Blue Marble Earth

August 7 2023 · Edited Apr 9, 2026

The Boxley Blowout – Engineering mistakes ruin Christmas 1918

In my last post I explored how the construction of dams along the Cedar River led to Rattlesnake Lake swallowing the small town of Moncton in 1914. The dam-related disasters didn’t stop there, and