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 * See Commons for File:Wasserstand.JPG for category listings

100-year flood

Study tutorials, assign categories to 2 images in commons

Dr. Antonio Agostinho Neto International Airport
Substantial rewrite 6/18/24

Emilio J. M. de Carvalho
Context and references 7/20/24

Kanawha Falls
New article 2/28/23. Linked to nearby site articles.

Kanawha River
Substantial rewrite on economy, hydrology, ecology using mostly USGS sources 2/22/23

By 1898 the project made the Kanawha the first fully controlled river navigation system in America.

Well


Added schematic of monitoring well to article and commons

Samuel W. Collins
Added details from Baptist:Slavery & Capitalism plus axe industry further reading 10/6/22

Gene Bilbrew
Substantial rewrite to Early Life 9/12/22

Amplified Bible
Substantial rewrite 9/4/22

Lockman Foundation
Complete rewrite 8/30/22

Draft:Los_Angeles_Tribune_(2020)
Written, reviewed, declined 8/11/22

Nez Perce
Paragraph re Wallowa Homeland and church return added at end on 10/22/21

Harvey Butchart
John Harvey Butchart (May 10, 1907 – May 29, 2002) was a mathematics professor who was well known for his hiking exploits in and around the Grand Canyon in Arizona, United States. Beginning in 1945, Butchart explored the Grand Canyon's backcountry on foot. He wrote extensively about his adventures and influenced generations of canyoneers.
 * edits January-February 2021

Battle of Losheim Gap
Article was a mess. Tagged December 2020, removed 1/28/23

Inserted Cleanup rewrite Tag:it mixes concepts at 3 different space/time scales, Target:Battle of Losheim Gap

Listed in open tasks section of WikiProject Military history/United States military history task force

2015 Gold King Mine waste water spill
The waste water in this incident is classic acid mine drainage, which is common around the world where subsurface mining exposes metal sulfide minerals such as pyrite to water and air. The release volume was equivalent to less than 1 hour of Animas River streamflow above Cement Creek (120 ft3/s) on the day of the spill or 11 minutes of streamflow downstream at Durango, Colorado, the next day (600 ft3/s). Extensive research has been published for the Cement Creek basin and similar watersheds affected by acid mine drainage at Summitville, Colorado, and elsewhere.

Stream conditions that had been common in the area 20 years earlier returned temporarily following the spill.

The chemical processes involved in acid mine drainage are common around the world where subsurface mining exposes metal sulfide minerals such as pyrite to water and air.