Search found 93 matches

by MarkGraham
Thu Jan 14, 2021 6:31 pm
Forum: Alleghenies and Ridge and Valley Areas
Topic: Undiscovered Old-Growth near Woodward PA??
Replies: 18
Views: 234

Re: Undiscovered Old-Growth near Woodward PA??

Yes that is fine. Good that big forest to the west is protected.
by MarkGraham
Wed Jan 13, 2021 10:01 pm
Forum: Alleghenies and Ridge and Valley Areas
Topic: Undiscovered Old-Growth near Woodward PA??
Replies: 18
Views: 234

Re: Undiscovered Old-Growth near Woodward PA??

Attached is 2007 LiDAR color height map for Stateline area. Looking at GE which has 2019 photo, all the trees are still there. Red is over 150, orange over 125, yellow over 100. There are several areas with trees over 150, with tallest LiDAR indicated height in 2007 of 159 feet. For tree height, if ...
by MarkGraham
Wed Jan 13, 2021 9:38 am
Forum: Alleghenies and Ridge and Valley Areas
Topic: Undiscovered Old-Growth near Woodward PA??
Replies: 18
Views: 234

Re: Undiscovered Old-Growth near Woodward PA??

I created the GE overlay from ArcGIS, using the color height map I created in ArcGIS from the circa 2008 LAS point cloud file available on NOAA elevation data.

Sure, I can run LiDAR for a couple other locations. Let me know the approximate GPS coordinates and the size of the grove.
by MarkGraham
Mon Jan 11, 2021 4:05 pm
Forum: Alleghenies and Ridge and Valley Areas
Topic: Undiscovered Old-Growth near Woodward PA??
Replies: 18
Views: 234

Re: Undiscovered Old-Growth near Woodward PA??

Here's the entire area for which I downloaded and ran the LiDAR. Green is over 75 feet, yellow over 100 feet, and orange over 125 feet.
by MarkGraham
Mon Jan 11, 2021 3:05 pm
Forum: Alleghenies and Ridge and Valley Areas
Topic: Undiscovered Old-Growth near Woodward PA??
Replies: 18
Views: 234

Re: Undiscovered Old-Growth near Woodward PA??

I will email you GE overlay file. When loading into GE select open vs import. Then the color height map is yellow over 100, orange over 125, and red over 150 (but didn't note any red). If I missed an area let me know and I will download and run the 2008 LiDAR. To do this I use NOAA Elevation Data an...
by MarkGraham
Mon Jan 11, 2021 12:55 pm
Forum: PA - Cook Forest SP
Topic: Anders Run Natural Area
Replies: 0
Views: 15

Anders Run Natural Area

I found this posting on the Native Tree Society trip reports for Anders Run Natural Area. http://www.nativetreesociety.org/fieldtrips/penna/anders_run_natural_area.htm This area is near Warren, Pa, about 35 miles north of Cooks Forest, and is well described on web sites. There is some old growth and...
by MarkGraham
Mon Jan 11, 2021 11:47 am
Forum: Alleghenies and Ridge and Valley Areas
Topic: Undiscovered Old-Growth near Woodward PA??
Replies: 18
Views: 234

Re: Undiscovered Old-Growth near Woodward PA??

Hello everyone, I hope everyone has been having good holidays, :D I recently found a old book in my small library called, "Seeing Pennsylvania" written by John T. Faris, and published in 1919. Faris goes over the great natural wonders of the whole state of PA, and even describes primeval forest tha...
by MarkGraham
Sun Dec 13, 2020 10:38 pm
Forum: Special Lists
Topic: Western States Rucker Comparisons
Replies: 27
Views: 1949

Re: Western States Rucker Comparisons

These lists are really interesting, thank you.

For the 99.06 meter Noble Fir, it was destroyed by the May 18, 1980 eruption of Mount St Helens.
by MarkGraham
Mon Dec 07, 2020 4:27 pm
Forum: California
Topic: No more exploring Lumpkin with Dunkin for Pumpkins.
Replies: 6
Views: 372

Re: No more exploring Lumpkin with Dunkin for Pumpkins.

Fair points, and the number of private jets at that annual Davos Sustainability Conference is a running joke. I feel the US is well positioned to take the lead on this issue. In the US coal has been deprecated in power production to natural gas, which is available widely and cheaply through fracking...
by MarkGraham
Fri Dec 04, 2020 10:35 pm
Forum: California
Topic: No more exploring Lumpkin with Dunkin for Pumpkins.
Replies: 6
Views: 372

Re: No more exporing Lumpkin with Dunkin for Pumpkins.

Verified temperature trend in Sierra Nevada is +2.7 degrees F over past 75 years. This leads to earlier spring snowmelt and more drying in the summer. A warmer and drier forest burns more intensely. I understand the issue of fire suppression, but it is impossible to do controlled burns over all the ...

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