11

That tree got bent over but not snapped when it was just tall enough so that its tip was where the end of the bend is now. One of the small branches near that tip happened to point upwards after the bending. That branch basically became the new trunk. The existing bent wood stayed where it was, with layers added each year enlarging its diameter. Now 25 ...


8

That is cause by clearcut timber harvesting. Timber harvesters will remove branches from trees that they fell and leave them on site. They will also sometimes leave specimen trees to help repopulate the area - or leave undesirable individual trees or species. The standing trees might also be the result of a weak implementation of a clearcut with reserve.


6

According to the National Oceanic and Atmospheric Administration The water levels of the Great Lakes fluctuate at different time scales to different forces. Very short-term water level changes, viewable in the interactive charts above, are caused by wind and storms. These short-term (hours to days) effects can be dramatic, and can cause the lake levels ...


4

If you want a longer trip in SW PA, the Laurel Highlands Hiking Trail is an option of about the right length. The question is very broad and you could probably get better answers at a trail directory like AllTrails PA. You will find the Great Allegheny Passage boring for hiking. If you like lots of waterfalls and don't mind driving east, check out ...


3

I found and have visited. Presque Isle State Park Internal combustion engines are prohibited in the interior lagoons, which are defined as the continuous body of water between Misery Bay and Marina Lake, excluding Graveyard Pond. A boat rental concession in the Graveyard Pond area provides a variety of powered and non-powered craft. Beaching of boats ...


3

Have you thought of the Lower Youghiogheny River at Ohiopyle? It's 1.5 hours from Pittsburgh and has the distinction of a paddler being able to park, put in below the falls, run the river, and then take out near the put in (due to its loop configuration). The walk back to your car is 5 minutes. This 'loop' section of the river is about a mile of Class II &...


3

You don't say what part of Pennsylvania you are in, The Great Allegheny Passage offers the option to walk or bicycle from Pittsburgh to Washington DC. It is mostly rail to trail, and relatively flat. On the Eastern side of Pennsylvania is 200+ miles of the Appalachian Trail I have not traveled it so can not speak to it's difficulty.


3

Lake Erie is classed as non-tidal because the tidal variance is less than 5cm at spring tide However (same source): Wind and weather conditions on the Great Lakes may create a seiche, an oscillating wave which can be several feet high. In many of the Great Lakes, the time period between the “high” and “low” of a seiche may be between four and seven hours....


3

I doubt that there are specific dates, other than late spring to early summer. It also depends on the water temperature, and I am sure that fluctuates from year to year slightly. Carp spawn in late spring to early summer, over aquatic vegetation. They may choose a shallow, weedy bay. After rains have swelled their home river over its banks, they may move ...


2

The favorite host tree of the Spotted Lanternfly is Tree of Heaven (Ailanthus altissima). There may be trees of heaven around your office building. However, spotted lanterflies aren't picky. They also like Almond trees, Grape vines, ​​​Peach trees, Apple trees​, Hickory trees, Pine trees, Apricot trees, ​Hops vines, Plum trees, Basil, Horseradish, Sycamore ...


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