Скачать или смотреть Happy Trails!!!

Back at the Black Diamond Mines Preserve, we decided to walk up the Canyon Trail. But first we had to get to Nortonville! As we entered the Nortonville basin area we met a cyclist (thank goodness we were not the only people out during the hottest time of the day).

This was a busy day on the Nortonville Trail for us. Not to mention that it was a hot day in August.
When is the hottest month in Antioch?
According to the sources on the internet, the hottest day of the year is July 28th topping off at 90 degrees. Thank goodness for the "temperature gradient" we just discovered when we explored the Delta a few weeks ago.

Here are more facts about the Black Diamond Mines Regional Preserve:

The Black Diamond Mines Regional Preserve (BDM) is a 6,000-acre park located north of Mount Diablo in Contra Costa County.
The preserve contains relics of three mining towns, former coal and sand mines.
The BDM is considered one of the two gas petroleum systems in and around the Sacramento Basin. The BDM is located on the present-day west flank of the basin, is dug into the Eocene Domengine sandstone of such high purity that it was used to make glass. It also contains a low rank coal. This non-marine to shallow marine deposit extends over much of the San Joaquin and Sacramento Basins. It underlies an Eocene organic-rich source rock known as the Kreyenhagen Formation in the San Joaquin Basin and the equivalent, suspected source rock, the Nortonville Formation in the Sacramento Basin.
The Domengine sandstone is the major gas reservoir rock in the youngest petroleum system in the Sacramento Basin, containing 55% of the total gas.
Thank you for exploring the Sacrmento Basin-Western Edge-Diablo Range-Black Diamond Mines Regional Preserve area with us!