Locations

SiteCountyStateRHI5RHI10RGI5RGI10Last measurement
Hermosa CreekLa PlataColorado165.58135.5413.529.5210/04/2016
Hewitt IslandFayettePennsylvania126.20118.4010.138.6808/28/2010
High Peaks WildernessFranklinNew York121.54111.0810.528.5511/30/2017
Highland Nature SanctuaryHighlandOhio125.92-9.67-06/27/2014
Highland ParkMonroeNew York108.32106.2015.4814.0611/01/2020
Highway 8 PinesForestWisconsin----06/07/2005
Highway 89, Black Hills National ForestCusterSouth Dakota----06/29/1998
Hillington Cemetery, Morris, NYOtsegoNew York----05/21/2016
Hocking Hills RegionHockingOhio----01/22/2017
Hocking Hills SP, OHHockingOhio148.38136.4410.179.2301/17/2011
Hocking Hills State ForestHockingOhio----11/07/2017
Hocking Hills White Pine RocketsHockingOhio----04/12/2015
Hocking State ForestHockingOhio----01/11/2015
Hoffman Notch WildernessEssexNew York120.30108.7211.089.0609/16/2017
Hogg WoodsButlerPennsylvania105.2096.609.197.3506/10/2009
Hoh Rainforest Visitor CenterJeffersonWashington221.08-3.15-09/17/2020
Holden Arboretum, OhioLakeOhio115.1296.6911.9810.7309/20/2007
Holland Patent CemeteryOneidaNew York----07/11/2015
Holly River State ParkWebsterWest Virginia149.02143.2610.069.0812/27/2025
Hollywood CemeteryRichmond, Independent CityVirginia0.00-15.52-01/15/2013
Hollywood CemeteryHenricoVirginia114.88103.8818.5516.2812/13/2019
Holmboe Conifer ForestOneidaWisconsin83.40-5.92-06/06/2005
Holmes RunAlexandriaVirginia107.80-11.01-01/14/2010
Hominy Valley OverlookBuncombeNorth Carolina----11/05/2010
Hornbecks CreekPikePennsylvania106.9292.837.456.0106/15/2009
Horse CreekHaywoodNorth Carolina----05/24/2026
Horse CreekWhiteGeorgia111.82-3.68-03/27/2013
Horsethief LakePenningtonSouth Dakota----08/01/2014
Hot Springs National ParkGarlandArkansas51.64-5.10-09/05/2016
Howard Collier State Nature PreserveSenecaOhio123.76116.8710.939.5301/19/2011
Howe's Grove Roadside ParkWashingtonOhio82.6674.9312.249.8211/04/2010
Howland CemeteryFranklinMassachusetts----01/28/2009
Howland'a IslandWayne/CayugaNew York----03/03/2013
Howland's IslandWayne/CayugaNew York131.96127.5316.4914.6711/16/2020
Hudson Highlands, Gordon BrookDutchessNew York119.98-4.82-04/14/2019
Humboldt Redwoods State ParkHumboldtCalifornia----10/13/2018
Humboldt Redwoods State ParkHumboldtNew York----10/19/2019
Hunters Creek GorgeErieNew York121.44117.8310.879.4404/06/2018
Huntington Forest, Newcomb, NYEssexNew York----09/16/2017
Huntington ReservationCuyahogaOhio104.34100.590.000.0008/20/2011
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